I can say that I've chosen not to bother when submitting a fix requires me to stray away from GitHub, and doubly so when it doesn't use a PR/MR workflow. There are only so many hours in the day, and I don't have the patience to deal with unconventional workflows when there are other things I could be doing with my time.

For projects that I'd be interested in being a long-term contributor to, this is obviously different, but you don't become a long-term contributor without first dealing with the short-term, and if you make that experience a pain, I'm unlikely to stick around.

A big part of this is the friction in signing up; I hope federated forges become more of a thing, and I can carry my identity around and start using alternate forges without having to store yet another password in my password manager.