There's also the issue of "does the username belong to the user". So if user a deletes their comment and user b quotes them both by comment and name, should user a's name be masked when they delete said post? Well, isn't that user b's content that's now being infringed upon? The current non-delete mode is fine - just don't write stuff you don't want on the web on a forum, and if you do then update with a new comment retracting the statement.

>So if user a deletes their comment and user b quotes them both by comment and name, should user a's name be masked when they delete said post?

I don't think so - it's clearly unreasonable to expect every instance of a username to be policed like that, particularly considering cut-and-pasting quotes. I'm fine with the idea that if it's in a thread it's no longer 'yours.'

But I also think it should be possible to remove ones' own account and have the username on those posts no longer point to an active account.

I also think there should be a "post anonymously" option as well, which there practically already is in the form of throwaway accounts. Might as well just make it official.