If you have a Claude account, they're going to train on your data moving forward

I can understand training AIs on books, and even internet forums, but I can't help but think that training an AI on lots of dumb questions with probably an excessive amount of grammar and spelling errors will somehow make it smarter.

Depends on how you’re using the data. There’s a pretty strong correctness signal in the user behavior.

Did they rephrase the question? Probably the first answer was wrong. Did the session end? Good chance the answer was acceptable. Did they ask follow-ups? What kind? Etc.