banned because of nothing

Can't be watching SoR boosted toons that closely, I have one of my main gatherers botting 18/24 7 days a week. I quest profiled him 80-85 and BGBuddied him to a full set of honor gear, now he's Multiprofiling it. he's on a WoW2 account and the WoW1 account was banned and appealed(successfully) while he's been running.

As per usually, it's probably a combination of things, like Proxy IP's, user reports, bulk mail between accounts, switching countries within minutes, etc, etc, etc. And who knows what that account did before you bought it.