Maybe it's easy to feel it's disrespectful because they've made social networks out of contributing to repositories.

Accreditation for the modification of petty and trivial issues is a nice and decent gesture, but overall unworthy of a paper trail binding me to any random none-of-my-business project for such a drive-by PR.

Personally, I would feel more comfortable sending that kind of inane PRs if the parent's way of merging was the standard one, but I know it isn't and therefore opt to keep separate accounts to compartmentalize (which unfortunately increases friction to such contributions).