Have comment boxes for created games, expressing any notes the creator would like to make.
Specifics:
When creating a game implement an option box where you can leave comments as to what kind of game you are looking for.
When browsing for open games you would be able to read brief comments about what type of games you would be joining.
Exp: There is a three person Classic game created. Listed next to all of the specs. of the game is a few words the creator of the game would like to express -- i.e. "Fast play please. No diplomacy. 2000+ only."
This will improve the following aspects of the site:
No longer will anyone wonder what kind of game they are getting into (non-premiums esp. -- i.e. Real time games)
There is often requests to put a limit on rankings in games -- well that's never going to happen, but adding a comment box will notify potential 'joiners' whether or not they will be welcome.
Having comment boxes would also greatly improve tourney game efficiency. Would it not be much easier to have a comment box that would list who should be joining which games?
This would allow for players to more easily find games that suit there tastes. (Because sometimes mere 'Feudal, esc., no fog, seq.' doesn't give you a full picture of the type of game you should expect.)