So far HPC has had very little to do with anything but total conversions, it doesn't live up to needs of other mods in its current form.
That's deceptive. Most of the mods on HLP either 1) are happy with the state of the SCP, and are busy working on their project with current features; 2) have a coder already on staff, and therefore don't need to use the board; 3) inactive. Blue Planet is a rare exception in that it's an active project that requires new features, yet doesn't have a coder on staff; furthermore, the guy who is the project leader (Darius) leads behind the scenes.
The obvious solution is to add Battuta to the HPC forum because he interacts with the SCP to a much greater extent than Darius. (As for Fury, he's an admin so he already has access to that forum.)
Yea I guess TBP and MULTI don't count as hosted projects either because I've never heard of it.
Nobody added you to the Project Heads membergroup when you were made a Project Head.

You should see it now.
The Hosted Collaboration board was meant to be open to all projects but it's a PITA to maintain it and it's obvious that people like FUBAR who definitely should have access have been falling through the gaps.
It's only a PITA because SMF's permissions system is a PITA.

It's only necessary to remember to a member to the Project Heads group whenever he becomes a Project Head. This controls access to Hosted Project Support as well as Hosted Project Collaboration. It's the same situation as remembering to add project membership as a secondary group rather than a primary group in order to avoid overriding custom titles.
The problem with more open feature requests is that the good requests tend to disappear below of a sea of less-good and fundamentally flawed ones. More access means more of those, so there does need to be some way of vetting which requests are good and adding them to some sort of database of requests so that the good ones don't get lost.
The problem with this is that it requires active organization on the part of the board moderators, and people are lazy. It's far better to make the process self-selecting, i.e. to prioritize feature requests from hosted project senior staff.
And yes, good requests definitely get lost beneath the sea of everything else.

For others reading the thread, this was discussed extensively when the HPC forum was first created. And some of these issues were even discussed back when the SCP internal forum was created. Take the "read-only" proposal for example: by the law of unintended consequences, that would only result in people complaining in the public forum about what they couldn't respond to in the "private" forum.
I would say that most of the problems on this subject can be solved immediately by expanding the definition of "Project Heads" to mean "Project Senior Staff", and by making sure the list is up-to-date. So for people like FUBAR and Battuta, that's already been taken care of. If anyone else is aware of a senior project member who should have access to Hosted Project Collaboration or Hosted Support and doesn't, feel free to say so and one of the admins will immediately add him.