Agreed with Joe. Everyone has sessions that they like and sessions which are not so good. If they were all the same, it wouldn't matter, right?
So Banger may (or may not, who knows what the issue is) have had a session with Sara that he didn't enjoy. Most of us have had those. It's enough to say, "Hey, I saw XXXX, didn't think she was as pretty as some of the other girls, was a boring session for me." That's it. If somebody else says, "That sucks, I had the same experience" or ""That sucks; she was great with me," that's how this should play out.
Here's an example. Jmac had a very boring and mechanical session with Christina at Studio 9 in December, while mine was mind-blowing and I can't wait to see her again. We both posted and moved on, and I'm sure that he and I will talk about ladies again. He and I have liked the same ones before, particularly the now retired Chantelle, chocolate goddess of Premier.