Here's a good recipe:
1. . see that 95% of the posts are from the same 5 people who belong to a little clique that agrees on everything and piles on if anyone disagrees with anything one of them posts. have them sit online ALL day making bad inside jokes and agreeing with each other.
2.. sausage, sausage, and even more saugage! as few providers as possible. there are a few great ways to do this. for instance, allow anyone and everyone to disrespect and harass them at will. another good strategy to keep those pesky providers away is to enforce stale old rules, like no posting in the review forum.
3. geographically and socially remote mods who don't know anything about the city or the scene. make sure they're offline for large portions of the day. and see that they enable the clique to maintain sausage levels.