Not to backseat moderate, but I wonder if the last post might be better suited to the "Let's burn PolDisc" thread?
In any case, this thread has some excellent posts from TheUnforgiving, RazorsKiss, and SilverAngelX, among others. The "recently joined" perspective that some can bring is especially valuable IMO.
While the community aspects of the discussion are definitely worth exploring more, I can speak better to the technical side.
Re: social media, yes it would be great if there are people willing to regularly promote HLP and its creations on those channels, and spreading the work among multiple people would definitely help reduce the risk of burnout. That's especially true for YouTube, since producing video content can be a lot of work.
FWIW, when I briefly ran a YT channel for a charity fundraiser a few months back, I found that
YouTube's Creator Academy had a lot of good advice on how to make videos that others want to watch and how to manage a channel that others want to follow.
This video on fundamentals of a creative strategy was particularly helpful.
Since a few people mentioned building on top of Knossos, it would be fantastic to find a coder who's able and willing to commit to it.
I can provide some support and
some bug fixes and maybe investigate how a feature could be implemented, but I can't take on anything bigger than that.
I
can, however, try to recruit someone to join Knossos development and hopefully fill that role, and I can give them some guidance of the sort that Iss Mneur gave me when I took up wxLauncher. When I'm ready to go looking for someone, I'd definitely appreciate help with spreading the word, including perhaps on our social media channels?

EDIT: Oh, also, maybe it's time to remove the "HLP on IRC" submenu from the "HLP" menu on the top navbar?
EDIT 2: Similarly, probably best to remove "SCP Mantis" from the "Reporting Bugs" navbar menu, and just generally go through all the top navbar menus for obsolete links.