Yes, they do exist! Well maybe this is the only one in existence, but I'm sitting here watching my brother playing GTAO and he drops into a session where there's one level 1000 just innocently chilling out. His name was what got our attention (which I will not tell in order to protect him from the wrath of R* but the picture shown will confirm I'm not making up anything), and after some messages back and forth we made out that he wasn't a bad dude as most super high level players are. After some freeroaming and Cargobobbing he got my brother into some RR farming for some big bucks, and he added the guy to his PSN.
It could be that he was being nice to lay low from R*, but whatever...he said he has like 8 accounts. lol