zlacker

In case 2 you should email hn@ycombinator.com. We watch for those ourselves and unban such users. Inevitably we don't see them all, though, and emails from fellow users are super helpful in that case.

Moderation is guesswork, and even if we guess 99% accurately about which accounts to ban in the early stage—a necessary thing to do, because otherwise the site would be overrun with spammers and trolls—that still leaves quite a few false positives who later turn out to be neither spammers nor trolls.

>>dang+(OP)
I'll try to remember that in the future. I don't see #2 very often, which is a positive of this site. Usually it seems to be newer accounts or infrequent posters which makes sense.