Well, I posed the question and then there was a frenzy of responses, questions demanding answers, and so-on, to which I replied.
Why do you want to know whether I've bought a fake? I've mentioned a couple of instances of knowing people being stung; surely that's sufficient.
Let me ask you a question: Do you think a site is for the benefit of the sellers or the buyers?
And another: Do you think that if someone spots something wrong they should just walk away because it's none of their business, or should they flag it up?
As for your last question, that is just too sneery to deserve a response.