Some people are abusing "show dead" on HN
As we also know, people are not perfect, both moderators and the general public, so for that reason sometimes people get hell banned that probably don't deserve it. Sometimes for a single bad post, sometimes for a post that isn't that bad but for some reason rubs a moderator the wrong way. Mostly however people that are hell banned, deserve it.
For various reasons (mostly related to the above) I like to have my "show dead" setting on so I can see dead posts. Now some people know they are hell banned but keep on posting as normal, probably because they know that quite a few people, like myself, will see their posts, but also because they are trying to prove a point. No problem here so far.
There are a very few idiots however who know that they are hell banned but post just to annoy people that have "show dead" on. They post huge walls of completely OT, and sometimes utter nonsense, text that take up a whole page and they do it often. I won't name names and give them any recognition but perhaps the time has come to implement total bans so that these trolls cannot post at all or limit post lengths for people with only 1 karma or negative karma.
I never cease to be amazed out how some people will go out of their way to be annoying and disruptive, fortunately they are a very small minority.