You retired in 1998, it was a different world then, and I'm sure you did very well meeting guys in bars, hotels, etc.
Great point! They can change their name from GreatTOPinSF to GreatTOPinNYC if they move. Most mgt. would allow them to do it on their own. They can also create a new profile while keeping the same cell/emails for their regulars to keep contacting them. Some websites like RM might have an issue allowing 2 profiles with the same contact information...
Stalkers do happen in this business, a former client might become fixated with an escort.
Rebranding as @VictorPowers said could be a good reason for him to "refresh" himself and start a new because of bad reviews or any other reason.
Also how long can someone call himself a jock? Bodies also transform, mature and age, maybe NYCotter wants to be known as NYCbear/cub in the future. Styles change, what about adding the term hipster to a profile after few piercings and tattoos. Actually nobody will accept he's a hipster
Tony Bishop for instance has one profile for S&M things called "Sir Tony" for M.A.L., and his regular one.