Was doing around 500 gph with 2 accounts in grim batol after the dropnerf. Noticed the 950gph on gundrak in this thread. I tried it with both accounts, and it gave me around 850gph...... for about 3 hours.
After that i come back at my pc to see both accounts disconnected. Both mailadresses of the accounts gave me a password has changed notification, so changed back one, just to find a ban report from blizz in that mailbox

Seems both accounts are perma banned. First time it happened to me, dont know if its the gundrak farming that is so hot, or the grim batol stuck ghost gave it away, but none the less: bleh :S One account was a 10 day WoD trial on its last hours

other account was a 4 euro battlechest with still 11 days on it...
Strange part is, it must have been investigated in the last 2 days, as i have a 3th account on 10day WoD trial farming grim batol that i left untouched the last 2 days, just started that one up just now as it had a few hours left, like the other WoD trial account. It was farming gundrak even after the other 2 had been banned