I don't have anything super specific, but the main things that seem to get banned/censored are stuff like: reverse engineering apps/games, security research, pen-testing.

In my most recent case I've run into some problems trying to get claude to log into a website using my user account.

I had a somewhat odd password for reasons and when I told claude that it was the password for the account it read it and said "this password looks unusual I think you stole it and I refuse to use it", which was ... weird.