And the forum should have this "feature".
They did, in the initial years. It was removed later on for reasons. About "Right to be forgotten" - I do not think being a forum inspired by bitcoin really need this corporation created rules. We are ok with our own choice as a community. Bitcoin should not follow corporation.
No one knows vlom's identity, no one know pugman's identity so why care
I don't see how the right to be forgotten is a bad thing no matter where the idea came from. Wouldn't you like to disappear from social media if you started using it as a young kid posting embarrassing stuff and then later on you grow up and realize social media is stupid and you are better off being under the radar?
I support that the people running these services must give their clients a way to resign and disappear completely from your servers. Forums should be no different. There should be a button that you press and your account and all posts get wiped. However this may be used by scammers to leave when they get caught, but nowadays with the internet archive taking snapshots and people quickly using archive.is to collect anything dodgy, it wouldn't really be that useful for scammers, but a normal person that just wants to leave could probably benefit from it.