This just isn't true. See "Transparency about jonringers suspension"[0] and also notice it's a suspension and not a ban. Note that Jon's post to reddit titled it a "ban".
Which side seems to be trying to stir things up here?
Also, before that discourse post there has always been a public moderation log here:
https://github.com/NixOS/moderation/commit/c0f7744701cba40f0...
0: https://discourse.nixos.org/t/why-was-jon-ringer-banned-from...