Former barebacker. Well, that's assuming that you believe her.
This is a game where we use punting phones, lie about our names and our backgrounds. The girls lie about their names, ages, weight, services (sometimes) etc. So when one service is dropped from a tick list, why is it the one thing we should believe? After all, there are plenty of fluffy punters out there who are happy to go running to an SP to tell them about a bad review or comment. Perhaps an SP realises the bad PR outweighs the good and decides to untick the bareback box. It doesn't mean she stops offering it to regulars or tries to be more subtle about it.
The point is, she may or may not have stopped barebacking clients. You just don't know. This isn't a risk free hobby. The truthful SPs may well only have unprotected sex with their partners, but who's to say who else that partner might also be fucking.
This is a game of managing risk. Read the profile, read the reviews and talk to the SP. Then make your decision. You're never going to know for sure. If you're not comfortable with the risk, don't punt.