I gave my own reasons for mostly abandoning this site in a post.

There were additional specific factors, some involving Eliezer's high-handed interventions to remove or downgrade things I'd posted without, I think, considering them carefully. A big one was when gwern responded to a post of mine with a vicious attack, not on my post, but on me as a person. I replied with something to the effect of, "As a rationalist, you should recognize that attacking someone has a cost, so what exactly is the benefit to you here?" He responded by saying that he just felt like it.

That wasn't what bothered me. What bothered me was that his comment was cruel and senseless, exactly the opposite of what this website is supposed to encourage--yet this denunciation of rationality in his personal behavior had more upvotes than downvotes. That showed me that this website isn't really about rationality, at least not to most of those who read and vote.

I feel a little bad about admitting that his personal attack succeeded in his goal of reducing my presence here. But it wouldn't have, if the LW community hadn't assisted.