I'm a bit of a lurker on these boards. I ride an old Schwinn conversion in Portland, Or.
My brother linked me to a thread on a totally unrelated forum (cars) that's hilarious. Some troll starts posting links advertising his own gambling websites. The other members track down his personal info and before the end of the first page discover the guy is a sex offender. Anyway, it made me appreciate the fact that the worst that happens here is someone gets accused of shilling for BikesDirect.
Edit: And even better, one guy is using the mugshot as his avatar!