I've noticed that if I notice someone online as civilized and intelligent, the odds seem rather high that I'll be seeing them writing about having an ongoing problem with depression within months.

This doesn't mean that everyone I like (online or off) is depressed, but it seems like a lot. The thing is, I don't know whether the proportion is high compared to the general population, or whether depression and intelligence are correlated. (Some people have suggested this as an explanation for what I think I've noticed.)

I wonder whether there's a correlation between depression and being conflict averse.