I don't disagree, and AI helps scaling many things: good work, bad work, malware.
However, I remember that a couple of university researchers (PhD candidates maybe?) thought it would be a good idea to introduce security issues in Linux, and managed to do it. Without AI and without a lot of resources.
A consequence of that was that Linux immediately reverted all the patches coming from that university, saying "we don't know if we can trust you guys" (but really I guess as a way to tell universities "if you fuck with us we ban you, now keep your people in line").
And that's what I was thinking about when I said that if too many contributors misbehave, as a maintainer I will just stop accepting contributions from people I don't know. And maybe that will happen. Maybe it will be harder and harder to just be accepted into the club of the people who can send a contribution and have it reviewed at all.