If you ever want a clear example of why I don't engage in more with open source any more except on my own projects or projects of people I know, you can look at the #Mastodon github issues lists (or the #ActivityPub one, for that matter) and look at how people reply to issues and PRs.
It's not that the comments are severe, it's that they are grating, and getting anything nontrivial merged is a long, tiring process of navigating these things
