Just come back to the forum after ages and everyone saying bm hunters are OP as fuck. Linking to vids and generally QQ'ing about it. Ive been playing my gf's hunter a little bit and got 2k back in wotlk so im not exactly a hunter noob, but i still cant fathom how people are achieving these videos or the reason for QQ.

Some are saying its because of a macro.
Why? What is this macro and what does it do? Is it a bug where things like KC or BW are extending to stampede?
Any help or clarity on this greatly appreciated