It's hard to see from the outside.
I can't see any issues on that forum with there brewing process. Did it happen on the previous board?
He claims to have have been selling his GH from the provider and another source. How did he try to fake it to your friend?
Seems like he has one bloodwork posted there from a guy with next to no posts, then a recent one from a guy with quite a few, as well as a few amount of anecdotal reviews from members with more posts as well.
Just trying to get the whole picture. Seems like every board has their own agenda and pushes one lab or the other. Pretty easy to see which vets on boards are inclined to push one brand, especially confusing when they happen to be vets/admins on multiple boards with different agendas. Not saying that's you, but I don't see how saying you can create multiple accounts there is a useful point, as anyone can do that on every forum.