Opensource

KDE code in the background.

Ironically, as a long term (former) member of the KDE community, they had one of the best and simplest codes of conduct, enforced it only once that I can remember, and maintained an incredibly respectful community (at least while I was involved). Other open source communities could learn from it.

Python has always been a welcoming community for me as well, although I was never a contributor. But that was before it got a steering committee and such. BDFL to community translation is always tough and comes with growing pains. I suspect CoC working groups and subsequent pushback such are the direct side effect here -- "it's not how it used to work!"