User blog comment:TNT LotLP/We have a winner! (Red Dead Giveaway)/@comment-127814-20100531115832

How about a simple rule which says they must have at least 10 edits by the time of the draw (not at the time of registration for the competition)? This also prevents the spammers from winning.

(Also, a rule saying they must respond within 24hrs of winning to claim their prize.)