GitLab already has a built-in way to reply to comments by email, right? I wonder how difficult it'd be to make "submit PR by email" part of GitLab itself.
Personally I probably wouldn't use that feature, as I'm already very comfortable with the Web UI, but judging from some of the other comments in this thread it sounds like some people might...
Submit patch by email to create MR is a feature I think we're open to if people indicate they would actually use it. I have the feeling that if we would that the kernel maintainers still wouldn't use it. But I'll gladly be proven wrong.