Some random now dead and long-forgotten gaming forum. People could be pretty rude and most were annoying know-it-alls who either told people to just go google stuff, poked fun of people's choices in games/platforms, just plain insulted them for daring to ask a question, or a combination of all or several of those things. Sure, some people were nice, but most were pretty trollish.
I've also had some bad experiences on the official Finnish furry community forums. Not because people there are bad or anything, but because I couldn't speak the language and "had" to write in English instead. The issue was briefly discussed in my introduction-thread, and there everyone seemed to be ok with me writing in English since I understand Finnish perfectly. But "out in the open" I just ended up killing threads by not speaking Finnish, so I decided to leave (and that's kinda how I ended up on here instead xP)
It's kind of a shame since it'd have been fun to see if I could've made some more local friends.