Um, I'm pretty sure this guy is a new one showing up since few months ago. I've seen this stupid in D3 public channel or community a lot times.
And the hud version he provided is obviously a copy of CN-hud-manager (don't know if it's a cracked version or just default manager which is free).
And I mentioned this guy earlier, who sell mouse-macro for 15-30$. It's amazing.
Other goods in his shop are all pirated games, like COD series or battlefield etc, sold for 1$ each. And at first, before at least 2 months ago he only sold D3 auxiliary plugins.
It seems that he is just a person collecting pirated games and copying CN-HUD-manager or macros, which are all free in some forum or website.
And as he kept advertising and hawking, there's seldom some fools visit and buy it.
I have to say, there's too many piracies or so-called thieves in China, and they don't worry about find idiots support them.