Folks just like the name Creedmoor and saying it. If it was the 6.5 Jones no one would give it any attention.
I don't know. They make a 6mm Creedmoor, and you never hear anything about it.
6.5 Creed seems to get a lot of positive play with the long range guys...even to the point that I believe it's being discussed as a replacement for the .308 for military use.
I have one, but I think nothing more of it than I do about half a dozen other calibers I own.