I don't care to much about it. I don't think it means shit, not pimp not ghetto and not tacky. I mean hell when you open up an ad you see a chick with her ass out so who is the one to say a heart in the title makes that girl tacky, ghetto, or pimped. When you sell sin you gotta dress it up sometimes differ yourself from the others selling flash catches the eye.
A single appropriate symbol can communicate emotion, which is difficult in text. Like a blush when a provider is compimented -- . Even that might be more appropriate for texting only, since space is limited and short messages can be misunderstood.
But in ads it is tacky, juvenile and is guaranteed to make me look elsewhere for companionship.
Could it be that the hooktards are so excited that they're going to get a small percentage of the monies paid by the Johns that they're trembling while putting their pussy for sale in the BP add ?