Won't they associate you again to the banned account through either your address, credit card, phone number, email or anything shared with the old account? It looks like they apply very extensive transivity, including (from a previous story I read on HN) using recovery email address to associate and ban accounts.
There would no doubt be people succeeding at this, but it would be a real pain ensuring that none of the details match to the old account and that no future actions end up causing a connection.
