Given this particular email is hosted on his own website it seems unlikely that it's "the worst". On the other hand, the exact terminology used in the details

Given this particular email is hosted on his own website it seems unlikely that it's "the worst". On the other hand, the exact terminology used in the details of the ban here[0] do lean toward the less severe side of CoC violations. It seems likely that it was death-by-a-thousand-papercuts (frequent & persistent small violations coupled with an evident unwillingness to accept feedback), rather than one big blowout incident as is more often seen with such bans. [0] https://www.betterbird.eu/faq/moz-governance.pdf https://www.betterbird.eu/faq/moz-governance.pdf