They have rating sites for builders and electricians (for example, MyHammer) and they have rating sites for prostitutes (for example, Punternet) so obviously they are the same.
Except MyHammer enlightens people on the excessive coffee drinking habits of a plumber or an electrician who demands extra money. Punternet enlightens men on whether a woman will do anal for money and whether she has an unsightly mole on her clit.
But of course they are the same.