Red Hood, don’t get me wrong, but you are bordering the presumptuous, and not only here, but in many of your last posts that I have read on similar topics…
Hector is right, mostly because the seller does not seem to be overgrading on purpose. All it would take is to tell him, and then give advice via PM.
That is, say "I believe you have overgraded the books, you might want to check the PGM forum" is OK, but not the sarcasm et al. That is threadcrapping, you get the point…
Second, which kind of "privilege" might be selling on a public forum area, is beyond me. Even if it is hosted by CGC it remains a public forum.