So it looks like those assholes at Steam are neither going to change my user name to indicate it has been banned, nor ban me in individual forums as I requested both in Steam Support and publicly.
They would rather lecture me on the way things work (which are verifiably wrong). It looks like my only option to let people know I cannot reply to them is to delete the account, which is insane. WTF is wrong with Steam?
This might take some kind of social media campaign to get fixed 
That was required in 2017 when I could not get the (now terminated) moderator to delete my NieR: Automata thread.
Just putting this here, do with it what you will because moderators are ignoring me: