hmm, to be honest, your arguments are not very convincing. Design and appearance can hardly matter. Java script is used by almost everything, your safety is your responsibility, if I were a seller, it would not bother me too much... reviews, by the way, I have seen quite a few... I do not defend the BnW site, I do not care about it .. I am just keeping up the conversation.
There really is a huge number of scammers on the Internet and it would be good to know some signs of fraud. But everything you list seems to be just the view of a layman. I do not want to offend you, this is just my opinion.