Just hold off on merging them. When enough typo PRs accumulate, squash all their commits into one, with yourself as Author. Give credit to the contributors in the commit message.

Then that AI is fixing hundreds of typos a day, seems like win.

That's assuming absolutely 0 cost for reviewing and merging what ultimately are low value PRs.

Exactly. Why are people looking for problems here?? There isn’t any. There wasn’t 100s of PRs so why are you so worried about that?? Stop assuming there will be unless you stop even the useful ones.