I knew Shadyvox most from his GX abridged. I dunno how much xthedarkone had impact in it but I really really liked it, and Shady was a funny voice actor in his own right.
It's a big shame what happened along the way, and the long story short is that he turned hard right and had a disagreement with LK, but not before threatening him that he will ruin LK's reputation one day.
His rap career didn't really take off, and now he's most likely reverse cancelled, like how the thing with that one guy in the Vinny situation happened.
"Iwata was awesome" - Mr. Nintendo
https://i.imgur.com/krtFHol.jpg