I must say it looks like a lynch mob here, I see no evidence that the black insert is fake, and just because he has produced no acceptable evidence (to the lynch mob) that it is genuine, you all say fake.
Surely the evidence is in the pictures, compare it with correct inserts and show the difference you lot.
None of you have proved it is a fake, you just say it looks too new.
I agree it is suspicious that he produced copies (metal copies I believe) but i see no actual PROOF in this post.
For clarity, I do not know the seller, have no intention of buying it, I just don't like the way you are all ganging up on the chap.