Hahaha. This has happened to me once before. I do not use sophisticated language and they thought I sounded like AI because of minor exaggeration on venting opinions. I think that is why your anti-ai flag got triggered.

Not a case of unsophisticated language here -- rather, it's a case of an awkward and non-standard sentence construction, which, to be honest, I just parse as someone who doesn't speak English as their first language; ChatGPT wouldn't make this mistake.

I think the assumption that all bad grammar is the result of speaking a non-native speaker is a bad one. I work with a lot of native English speakers and they get all kinds of grammar school grammar wrong.