On RM Projects:
Why the prejudice against the RTP?
There's nothing wrong with it at all, and it doesn't make a great game any less great.
On non-RM Projects:
How about instead of killing any non-RM project's chance of being a featured project by saying it must be below 20MB of space (not hard to fill up, and just about any project that uses 3d will be pretty much out of the running, oops), why not just say that you can't store it on the server if it goes over a file limit. I think filesize is a terrible measure of what should be 'featured', if they need space because 21mb is too much, direct them to
https://www.dropbox.com/ but let the project be featured based on QUALITY, not forced abstract standards.
Also if a game is 80% done there's no real reason to do anything more than post a project thread, is there? What does a whole forum do for you when you are 80% done with a project?
It looks a lot like you're "encouraging" people to not bother posting anything other than RM projects for consideration through extremely restrictive guidelines that would disqualify the serious projects (1 hour of gameplay time?) that you seem to want. The quality of the game should be what matters, not technical specifications, and if nothing else, Featured Projects should be voted on instead of just added in if they meet these standards.