> Banned accounts can continue to post, but their comments are killed by default. Why? Because otherwise they'd just create new accounts and pick up where they left off. Since new accounts are unbanned at first, there would be a time lag before we could catch those and ban them again. In the meantime, more abusive posts would get through.

I had no idea this is how bans work on HN and it is a pretty clever moderation strategy -- although it somewhat reminds me of a black mirror episode O_o https://en.wikipedia.org/wiki/White_Christmas_(Black_Mirror)