I get the slight hypocrisy in my title, but it is what it is.
I haven't encountered much, if any, of these things: bullying, trolling, mockery, condescension, accusations of circlejerk, "I almost cut myself on that edge", "you're so brave", etc.
It's fucking refreshing. It's like the whole site is /r/trees but totally sober. Well, I hope not totally ;)
Keep being positive. I was on the other site for seven years. I've been on this one for a few days and I've never felt so welcome and free to speak my mind, give playful banter, whatever. Damn fine community.