As I wrote, he "May be" doing it, I didn't post this for people scream at me without any proof or evidence, just so people can pay attention and do proper and better research than I did.

All I really want is to be proven wrong.

EDIT: didn't read you mentioned that it doesn't support nicehash for dev fee. Well to be able to send his dev-fee to nicehash on our workers with "preferred diff" set for analysis we've had to do some proxy tricks.