This is a business transaction to a point. Of course there's going to be some type of feelings that develope over time especially if they're regulars. But, if we both hobbyists and providers don't keep all of this in perspective, it would considered an affair, she would become your mistress and she'd be fucking you for free. Then your real problems start.
There's a couple reasons why there should posts about NCNS's:
1. It shows a history if there is one. Then guys can decide if they still want to take a chance on her. If they do, they know damn well what they're getting into.
2. It gives the lady in question a chance to change her ways. It wouldn't be the first time that a lady saw a thread about herself and decided to change for the better. I've seen it happen on here and guys were thrilled that she owned her mistakes and asked for feedback.
Its true, in the hobby world you are going to come across NCNS's, B n' S, etc., but threads like this will keep guys from making mistakes and hopefully help providers change their ways.