I haven't said as much in any of the projects I maintain, but I've set a very high bar for even entertaining AI PRs to those projects. So far I've only accepted ones that are nearly indistinguishable from humans. Typically the rest flame out if I ask for any material changes to the code as submitted.
The problem that's going to push me to making an official opinion are low-effort AI PRs. Typically in any backlog there are a couple of issues that are really only a couple lines of code if done correctly. The problem isn't writing the code. In fact it's less energy for me to just write the code than to deal with the ping-pong on discussing the code as submitted, and I've done that in a couple cases to justify just closing the PR and not waste my time anymore.
It was never the 2 lines of code. It's the missing tests and the documentation and the release management of the breaking change that the 2 lines represent for the 2% of your userbase who will actually notice. That's why it wasn't just done instead of bothering to write it up in the backlog.
So filing the 1-2 liner is just going to piss me off, not engender me to having you on the committers roster. And AI makes that even lower effort so it's happening much more often. Sometimes 2 different people at the same time.