Yes, I have 3 separate autofarms, each one can rack up 2k gralats per hour. 2000 x 3 = 6000 per hour.
I have 2 in my house, which I wasn't banned last month when I was using it with only 2 accounts.
I added a 3rd one in my guild house today, a few hours before I was banned.
I wanted to see how comfortable it would be to use 3 accounts at the same time by just spamming 2 screens on left, and hitting s key with the right.