Im of the opinion that since the Blizzard store sells currency and this currency can be transformed into battlenet balance aka. Gold. Boosting for gold should be equated as a payable service for real currencies. Which in turn breach EULA. Not to mention those who sell runs with loots included, I mean in the current state of the game one could call it gambling.
I know this is incorrect, but I’ll stay with my opinion on this and call any boost seller a Scammer.
You wouldnt have liked classic then when trade was for selling proffs and people had a hard time fitting in there wares just either leave 2 or install badboy or pratt addons.