I think noone can be saved from himself. Kohl admins decided to run their site as they do, noone can force them do otherwise. Bernds on Kohl chose to post on Kohl, and choose to do so continuously, noone can force to do it otherwise.
What you can do is to make sometimes a thread and raise awareness, list your arguments, present solutions, and hope maybe the message will go through the thick skull of Bernds. It's a legit discussion and if you don't do it obnoxiously - like grappa threads or Bogdán - they won't have reason to ban you.