Having Showdead enabled in m HN profile, I see comments and submissions from banned users as well as those which are flagged by mods and HN users. Many users, unaware of being banned, continue to post to HN. Over the last 3 months I have noticed a significant uptick in the number of banned 'regular' users (as opposed to spammers, SEO bots and so forth).

Almost every day I see worthwhile comments and submissions made in good faith that have been automatically flagged. Now, 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, but on the other hand there's a lot of valuable content posted in good faith that is being hidden, and the amount seems to be increasing.

Can this policy be reviewed or clarified in some fashion?