I've heard various ideas such as limiting it only after mods have expended their points (this will require implementing a cooldown to prevent a user from getting points again too soon). I want to hear your feedback, and I'll roll together something for the next major update of the site. Leave your comments
The site is still young. Give it a chance to grow as it will. Cripes, at the same age and likewise depending on word of mouth, /. probably had no more than 4000 accounts either.