This is correct. I had an issue with an Airbnb at some point that Airbnb was struggling to resolve. When I said "whatever, I'll just dispute the charge", the rep said that it is their policy to permanently suspend an account when a user initiates a chargeback. Not "may" but "definitely will". The issue did end up getting resolved after countless phone calls and escalating the issue to supervisors of supervisors but
I'm guessing if he does a chargeback he gets banned from AirBnB.