I think you answer your own question.
Brindlebear removed his feedback from Charlotte, in his feedback he has 3 feedback removed from "member not actives" and has 2 feedbacks from Charlotte.
SoloSteve left her feedback, most of his feedback is from WendyBustySlut and Member Not Active - it looks dodgy. There are a couple of others in the list, but:
4 x Wendy Busty Slut
2 x Post pregnant - profile not active, but he was her only reviewer apart from volvic2000 who had no fb at all, no feedback from PPA!
Sticky Vicky feedback looks ok
Tounge blaster has only one feedback, perhaps a sergie profile, but either way, no value in terms of feedback.
Naughtygentxxx looks a genuine profile, though he's a service provider, I'd take that with a pinch of salt.
Eyeballpaul - 2 reviews from Sophie Sophia98, 2 MNA and one that looks genuine.