These sites are selling cheap watches at a high price, you won´t see the buyers feedback anywhere. There is a trusted dealers list here http://www.rwgforum.net/forum/230-watches-clothing-accessories/ and the rest just forget about it.
Sometimes yes, it matters, but not necessarily. The post counting is that how active is a member, participating or not. Giving opinions or just lurking?
Usually they are very fast in closing these kind of auctions, what is going on there? 10 more hours left... I hope the buyer at least is smart enough to use PP