I post a little in the contest threads
and even I think it have gone out of control lately. What I would see as good rules for both contest whores and regular GFYers:
1. Max 3 contests at a time.
2. No consecutive posts. (easiest to enforce and its enough to slow the whoring down with no top poster prize)
3. No top poster prizes.
4.
Rules to ensure its webmasters not surfers playing just like I posted above. #12
5. Max 14 days for each contest.
6. Strict enforcement on the rules.