Well, I don't think they manually look on each banned account, but they must have some sort of code that checks on the reason they banned you, I remember there was a time they started banning Native Americans because their names were not according to their rules. that was the rudest thing ever, and the reason for having multiple accounts is because it limited people to only have a maximum of 5000 friends so a person is forced to create another account if their account is maxed out. And I still need those accounts to migrate my posts and other things that I worked on for years.