"I know that on a site called 'Hacker News' informing users that their username or their IP has been banned or restricted is asking for trouble," Does PG have

"I know that on a site called 'Hacker News' informing users that their username or their IP has been banned or restricted is asking for trouble," Does PG have a policy against this? I seen people point out that so-and-so was hellbanned before and never noticed any repurcussions and I have also seen people repost useful comments from users who were hell banned. Or do you think "the trouble" stems from the word hacker in the site name?