I think the worry is:

1. People will publish AI generated frontier math making it difficult to identify frontier mathematicians. 2. Trained frontier mathematicians will become scarce

that hasn't been my experience. Its widely used in engineering and has been for decades.

Ya, I think engineering falls under the umbrella of “scientists talking to other scientists”

American tiping culture is a form legal discrimination, were customer tip less for workers of different races, religions, genders, sexual orientation.

Only a minority do that. Most people tip based on service not racism.