I had the same experience yesterday. Tried to setup a personal account to access a group and next time I logged in I got the same message about not following their "Community Standards". How is that possible? I didn't even do anything yet! Continued for them to review the ban but I had to stop on the very first step where they asked my phone number since I'll never give them such an information. Now the whole shit is stuck and I cannot even remove my account without giving them my number.
Isn't this just a phishing scam? This should be illegal.