[anonaccount27]

Microsoft has Account and Console bans, and it has variations therein; there can be a total console ban that extends to all of the accounts on it as well, there can be temporary console bans, full eeprom ban, etc. as well as simple account bans.

It's also unfortunately not a perfect system. On the original Xbox, there was an autoban trigger for an inordinate amount of negative feedback on an account. It made for some interesting retaliations when you utterly destroyed someone and their friends in a game.