I found the ones I saw to be tasteless. This thread sounds like importing drama/creepiness to me.
Actually, they were rather like the This Troper series.
Fresh-eyed movie blogSometimes they can be genuinely funny, but most of them are funny in the "overly-obscene" sense. Though given that most of them are based on 4Chan threads, however, it's not very surprising that the latter case is more prevalent.
Things can get just as weird on the Off-Topic Forum on Roblox or in Youtube comments, the latter case more so.
Although the majority of Thread Sims are hurricanes of typical Internet idiocy, the idiocy is just about the only thing that makes them interesting. I'd imagine that a sim based on more tame forums like Tvtropes or Ponychan would not have as big an impact, though that would depend on the sort of thread they used.
Okay, fine! I'm going to do something I'm sort of good at!

Discussion about Thread Simulators: Those wacky videos that provide a realistic simulation of life in an online Image Board forum thread.
IT BEGINS
Okay, fine! I'm going to do something I'm sort of good at!