You're definitely right there, but most of those announcements are for crap projects, and I think it's become standard for that section to be a spam-infested, zero-value trap for shitposters and paid shills.  The gambling section(s) shouldn't be that way.

I'm not a gambler and generally don't visit either of the gambling-related sections except for when I'm doing post history reviews for members on request.  When I've done that I've noticed that I'm visiting threads that are hundreds of pages long sometimes.  It's almost like there are multiple Wall Observer threads there!  But like OP mentioned, there are so many campaigns that require posts in the gambling section that it's inevitable that threads with so many pages are going to attract the worst posters, as they know nobody is going to read anything they write.

Not sure if any changes are going to be made, but I'd certainly support everything OP is proposing, especially having to lock threads after a certain period of time.  OTOH, I have a feeling that those shitposters in campaigns will invariably find a way to get around whatever restrictions/changes that are imposed, since they still have to meet their post quota (and you know nothing's going to stop them from doing that).