well it's not griefing, since it can't attack or kill anyone, unless you initiate the attack. So if some big as mob is walking around in goldshire, already aggrod on the guy who trained it there, and you decided to take a stab, and eventually die, well that's your own fault. It's not like, he brought it there and it went beserk on everybody.
On page 16 on that thread a blizzard employee talks about that
Not quite. During the discussion, the PC doing the pulling dragged stitches into the inn, at which point, that PC got killed. Stiches, being a monster, then resorts back to its normal AI, "Kill everything in sight." Despite what Blizzard has said, Stiches will attack people nearby. (He's done it to me in Darkwood a few times.)