Well, everybody knows who my favorite is.
But, I can see where a Provider might not want to say such a thing on a public Forum. After all, if she is good, she can convice every guy she is with that he is the greatest, and her favorite.
If all of her clients suddenly read that she prefers one guy over all others, they might take pause.
But, if my favorite wants to come on here and tell everyone how great I am, I won't mind. Besides, for the two hours a week we see each other, I am, for that two hours.