[lhl]

While I'm ok w/ the general principle of hellbanning (done properly, it can be a very effective way of tarpitting trolls/spammers) I don't think HN's implementation is very good.

New accounts start w/ 0 karma and posts seem to go dead when you go negative, so it's pretty common for perfectly normal accounts to be hellbanned just because of one or two initial downvotes.

It'd be pretty trivial to improve the algorithm, the most simple being a karma buffer (a purposely bad actor is sure to accrue plenty of downvotes) or some new account/unique post discounts/allowances. You can of course go pretty deep down the rabbit hole once you start with these things, but I bet even the simplest fix would solve most of these problems.