I saw this too and was going to post.
One profile, that of a young woman, said that she's particularly interested in being a (paid) friend to senior citizens. Men have always paid for sex, but there's something about making lonely people pay for companionship that turns me off. Makes me want to turn the prostitution laws on their head. You can legally pay for companionship only if you have sex during that time. That would be hard to enforce though. ("I swear, Officer, I was going to give you a blow job later!")