I do that, too! Sometimes it makes most sense: for instance if I found and fixed a bug, I don't need to open an issue to ask permission for the PR; I just send

I do that, too! Sometimes it makes most sense: for instance if I found and fixed a bug, I don't need to open an issue to ask permission for the PR; I just send the PR. Also many times, I find it easier to express my idea with code (by making a PR with the change) than with text. I only open an issue first if the code contribution will take a considerable amount of time and I want to make sure that the maintainer is fine with it before I start. Or if I need help from the maintainer, of course.