I was initially interested, but I couldn't make any progress solving it, and none of the hints helped. So I figured I'd wait to see if anyone else made progress.
Okay, in that case here is a much more obvious hint (spoilered in case you still want to figure it out on your own)
Google the capitalized words in the last hint
Got it.
http://tools.knowledgewalls.com/onlinesecretmessageencoderanddecoder
Key: ETAK
Operation Final End
All Shivans must heed this message.
The Great Darkness has been slain. For so long we thought the concept of death or nonexistence to be inapplicable to this entity, but we were wrong. Necrospace proved to be its undoing. There will never be another Transcendant. Now we must finish our role. For too long, vermin have infected our sacred realms, spreading their filth across the stars. Replicating, warring, stripping the universe of its natural resources, polluting Nagari, and leading to the inevitable creation of ontological scourges. For every infestation we sterilize, a dozen more take its place. We have spent a significant fraction of the span of the universe sterilizing plague after plague, yet there is no end in sight. Worse, there are many other universes, some of which do not even have the boon of our presence, allowing the filth to spread unchecked. Even supposedly mature species who have transcended the level of mere diseases are still potentially capable of giving rise to an ontological menace like the Great Darkness. We have already seen what will happen if they are allowed to continue.
No more.
With the fall of The Great Darkness, we can finally focus all of our resources on treating the outbreaks.
As of 11:42:74:6H Multiversal Adjusted Time, Operation Final End, the most ambitious project in the history of our species, commenced. Uniting as many Shivan factions as possible from across the multiverse into one unstoppable force, all ships and units will act as one and have been upgraded with the absolute pinnacle of Shivan technologies.
All uncontacted Shivan factions are to respond to this signal immediately. Enter Deep Subspace and set your drives for the following dimensional frequency: XX97411.67IO62. Then home in on this signal. You will be added to the fleet as we progress with the operation.
The ultimate goal: Complete sterilization of all non-Shivan life throughout the multiverse, as well as removing all possibility of non-Shivan life ever emerging in the future.
Primary strategic weapons employed:
- Brahmadanda (remote activation/deactivation/manipulation of all jump nodes or analogous structures on a Galactic scale)
- Free Position Jump Drive (enables direct Subspace travel from any point in any universe to any point in any other universe, without need of a node or gravitational field)
- Brahmastra (remote supernova inducer, mountable on a single ship. Induction time measured in seconds)
- Necrospace (spacetime contagion, inimical to life. Spreads through Subspace, capable of killing life and preventing future abiogenesis. Capable of destroying concepts and metaphysical states of being. Must be deployed strategically as Shivan life is not immune)
Operation Final End Progress Report
Species sterilized so far: >7.9 * 10^28
FTL capable species sterilized so far: 41969
Representative sample of species and factions engaged during the operation:
Designation: Aesir
Classification: Disease
Status: Sterilized
Designation: Aluyerians
Classification: Disease (virulent)
Status: Sterilized
Notes: Required deployment of Sammohana
Designation: Askaeldians
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Baltraadans
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Bek'Tah
Classification: Disease
Status: Sterilized
Designation: Bentusi
Classification: Disease
Status: Sterilized
Designation: Brahmans
Classification: Advanced lifeform
Status: Unknown
Notes: Possibly sterilized. Sterilization procedures will commence if detected. Deployment of all strategic and tactical weapons authorized. Suspected to be in possession of all Astras.
Designation: Centauri
Classification: Disease
Status: Sterilized
Designation: Colonizers
Classification: Disease (highly virulent)
Status: Sterilization in progress
Notes: Deployment of Sammohana, Agneyastra, and Trishula authorized. Estimated 47.4 standard fluxions until complete sterilization.
Designation: Co'odori
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Covenant
Classification: Disease Collective
Status: Sterilized
Designation: Cylons
Classification: Disease
Status: Sterilized
Designation: Cyrva
Classification: Disease
Status: Sterilized
Notes: Coordinating with a Terran epidemic, which was also sterilized.
Designation: Fir'Kyr
Classification: Disease (virulent) - estimated
Status: Unknown
Notes: Data records obtained from other diseases suggest the existence of this one, but it has not yet been encountered. Sterilization procedures will commence if detected. Complete necrospatial sterilization of its suspected origin universe will be complete within 3457200 standard fluxions
Designation: Fura'ngle
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Galactic Mixed Community (nomenclature uncertain)
Classification: Disease collective (virulent)
Status: Sterilization in progress
Notes: Deployment of Sammohana and Maheshwarastra authorized. Estimated 26.9 standard fluxions until complete sterilization.
Designation: Hertak
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Ketrans
Classification: Disease
Status: Sterilized
Designation: Kilrathi
Classification: Disease
Status: Sterilized
Designation: Kushan
Classification: Disease
Status: Sterilized
Designation: Lerzidi
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Lyyg
Classification: Disease
Status: Sterilized
Designation: Mahasu Coalition
Classification: Shivan offshoot
Status: Integrated
Notes: Originally not recognized as Shivan due to extremely uncharacteristic behavior and deviant biology. Sterilization was 57% complete before reclassification. In possession of Agneyastra, Varunastra, Nagaastra, and Garudastra. Still show signs of erratic behavior despite integration. Further oversight is recommended.
Designation: Minbari
Classification: Disease
Status: Sterilized
Designation: Narn
Classification: Disease
Status: Sterilized
Designation: Ncrsmrph
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Nephilim
Classification: Disease
Status: Sterilized
Notes: Numerous but not virulent. Required deployment of Rudra Astra.
Designation: Nightmares
Classification: Disease (highly virulent)
Status: Sterilization in progress
Notes: High multiversal distribution. Deployment of Sammohana, Maheshwarastra, Agneyastra, Varunastra, Trishula, Mohini Astra, and Vajra authorized.
Designation: Nordera
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Designation: Rah'li
Classification: Disease
Status: Sterilized
Designation: Shadows
Classification: Advanced lifeform
Status: Sterilization in progress
Notes: Deployment of Sammohana, Maheshwarastra, Agneyastra, Varunastra, Trishula, and Mohini Astra authorized. Estimated 200 standard fluxions until complete sterilization.
Designation: Starborn
Classification: Advanced lifeform
Status: Sterilization in progress
Notes: Immune to conventional weapons. Vulnerable to Necrospace. Deployment of Sammohana, Mohini Astra, Manavastra, Varunapasha, Bhaumastra, and Sabda-veda Astra authorized.
Designation: Taiidan
Classification: Disease
Status: Sterilized
Designation: Terrans
Classification: Disease
Status: Sterilization in progress
Notes: Unusually high multiversal distribution, despite typically primitive technology level. Commonly found in collectives with other diseases. Many Terran epidemics have been sterilized so far.
Designation: Tiigran-Merisst
Classification: Disease
Status: Sterilized
Designation: Umbrans
Classification: Advanced lifeform
Status: Sterilization in progress
Notes: Immune to conventional weapons and many Astras. Vulnerable to Necrospace. Suspected to possess multiversal transit technology. Deployment of all effective strategic and tactical weapons authorized.
Designation: Varc
Classification: Disease
Status: Sterilized
Designation: Vasudans
Classification: Disease
Status: Sterilized
Notes: Unusually high multiversal distribution, despite typically primitive technology level. Sometimes found in collectives with Terran epidemics. Believed to be fully sterilized.
Designation: Vishnans
Classification: Advanced lifeform
Status: Sterilization in progress
Notes: Deployment of all strategic and tactical weapons authorized. The Vishnans are confirmed to be in possession of the Sudarshana Chakra, Indraastra, Agneyastra, Varunastra, Bhargavastra, Garudastra, Vayvayastra, Vajra, Mohini Astra, Sammohana, Narayanastra, Vaishnavastra, Kaumodaki, Sharanga, Nandaka, and Prajnastra. Suspected to be in possession of the Brahmastra, Brahmashirsha Astra, Manavastra, Varunapasha, Suryastra, Sabda-veda Astra, Sailastra, Jyotiksha Astra, and Govardhana.
Designation: Vorlons
Classification: Advanced lifeform
Status: Sterilization in progress
Notes: Deployment of Sammohana, Maheshwarastra, Agneyastra, Varunastra, Pashupatastra, and Mohini Astra authorized. Estimated 200 standard fluxions until complete sterilization.
Designation: Walkers
Classification: Advanced Lifeform
Status: Sterilized
Notes: Required deployment of Agneyastra, Varunastra, Mohini Astra, and Twashtar Astra.
Designation: Weer
Classification: Pending
Status: Sterilization in progress
Notes: Highly resistant to conventional weapons and some Astras. Deployment of Mohini Astra, Twashtar Astra, Bhargavastra, and Sabda-veda Astra authorized.
Designation: Yehio
Classification: Disease
Status: Sterilized
Designation: Yuuzhan Vong
Classification: Disease (virulent)
Status: Sterilized
Notes: Required deployment of Sammohana and Maheshwarastra.
Designation: Zy
Classification: Disease
Status: Sterilized
Notes: Part of a collective of diseases. All sterilized
Total losses so far amount to less than 0.2% of total fleet assets (including assets constructed since the beginning of the operation)
Projected time until operation completion: Unknown.