I figure you've never received any pull requests. PRs RARELY are good to go, most of the time I have to put as much work as they did to accept them.

Except for a few contributors, most just pushed a single PR, which means they never get to learn how to contribute autonomously.

I've turned to reject PRs that are half-assed and ask me to finish their work.

They don't help me, they only push me to work more for free for something that they want.