It can be very exhausting to receive a lot of PRs. especially when they're LLMs. We have to read what people don't often even read themselves. They're often very wordy. Then it hurts all the more when it's wrong.
I tend to respond quite well to AI-authored or assisted PRs to my project, but to be fair we maybe only get 3-5 PRs in a good month.
Thinking it through a little bit is probably coming from having bounties on a few issues that might be contributing to my negative experience.