I don't see what so bad about that thread, other than that it came at a bad time given that the "most delusional stanbase " thread that preceded it.
I think Gaga could have certainly made a 1,000 copy difference. Seeing as how Gaga has 20 Million followers, only
1 out of every 20,000 had to be persuaded to buy the album, or
0.005 % of her followers.
It doesn't seem like that much of a stretch. This of course doesn't make it a certainly, but it also doesn't make it an impossibility.