What about having good titles but basing them on a rating instead of straight up post count... Say any user can vote on a post based on some different things...
CaraZy, Informative, Funny, Boring, IT BLOWS, etc.
Kind of like what the mods on /. do..... Then you take those ratings and give titles out based on that. That way if someone votes a ton, but its all stupid, they will end up with a title like "I'm a F*cking Moron". =P