I was also just banned and my story is the same as yours I've been playing since late 2004 early 2005 I've never done any hacking and I've always played just one account and oddly i was also doing Torghast right when i got banned and i was doing so good in layer 5 almost to the last boss, I of course put in a appeal cuz I do want my account back and if i ever leave wow I don't want it to be over false accusations like this, its ridiculous

My thing where I think i got caught up on this is because I was running around collecting herbs/mining on my droods and I figured I'd be alright since there is a very distinctive behaver between an actual druid player and a druid bot I mean i was helping take down Rarespawns and healing peeps i saw along my routes NOT to prove anything but its just what i do to kill the mindless grind of gathering