lol, you guys are like the opposite to the DB programming boards when it comes to frequency of competitions, which in its way is good, the nVidia competition really raised the bar for game dev quality (or at least in DB)
Firstly, a competitions board is just an incentive to create even more contests than at present, all at once
There's plenty to keep users occupied by the looks of things, someone here said he was entering 7 or so of them.
If you want to keep future competitions organized then why not just add a tag like [fpsc competition] on the front so that when somebody searches using that tag, all the competitions come up... you could easily stick the end date in the title too. Thats the sort of regulation that was mentioned that you could be aiming for.