I think its simple, just don't hide it. I've had mutliple contributors try to hide the fact that they used AI (E.g removing claude as a code author - they didn't know how to do it and close the PR when it first happened.). I don't really care if someone uses AI, but most of the people who do also do not test their changes which just gives me more work. If someone:
1.) Didn't try to hide the fact that they used AI
2.) Tested their changes
I would not care at all. The main issue is this is usually not the case, most people submitting PRs that are 90% AI do not bother testing (Usually they don't even bother running the automated tests)