Slight sidenote: though I'm not a Lobste.rs member, I do browse it often to source my links and read insightful discussions. In that light, I am constantly thankful to and amazed by pushcx for his effort in moderating. It's what keeps the place on-topic, and it's done incredibly well.
I remember reading an analogy wherein being a moderator of a community is like being a janitor at an amusement park. There's a lot of vomit, and there will be even more soon, so you have to clean it up and continue doing so.
It's a thankless job. The community, at some point, defaults to spiralling into flame wars and being torn apart internally. It takes courage (no, not that kind) to keep it on track, and one must not hesitate to delete and ban stuff. As an example, I'm not yet entirely sure how I feel about Drew DeVault and his writing being banned, I do agree that he can be caustic, and at some point dealing with that becomes too much to bear.
It's been a while since the Facebook moderator report was published. This is a problem that exists on all scales. I don't envy the moderators and am eternally thankful for their behind-the-scenes work in keeping their communities clean.