Many of us here do not use Paxful and know little about the feedback system there and whether it is possible to manipulate it. Guarantees from other sites are mostly rejected here for loan requests. You would continue to be looked at through your Bitcointalk history.
I agree with the other stuff you wrote but there's a lot of members on let's say the Currency Exchange board who would be interested in such information. Of course "regular" users who mainly just post would not care about those sites.