Yes, he has always seemed like a kind and empathic guy, but prone to angry rants and sometimes uncalled for insults. I can handle such people just fine in real life so I do not think I would have any issue with being called out on a mailing list when I fucked up.

Should he cut down a bit on the angry rants? Sure, but in general he seems like a really nice guy and I do not think they are a big deal.