On Frostmourne it's rather tame most of the time.

I get endless "lol" "haha" say's, a few "lol nice man!" whispers, a heap of "how do you ...".
Theres still a few of the ones who don't like multiboxing, best one has to have been last night's "bullshit multiboxer" "Why so serious?" "I hate multiboxers being so op in pvp owning everything" "It's nothing personal" "K, just another way of playing the game" "Blizz should ban it but they don't because they get more money".
Nothing personal, you're just a fucktard

Got into outlands and said in General "Woot outlands!". Instantly got GTFO, die in a fire, etc. Few people said grats :P
Had two people whisper if I was still boxing, cause 3 of them were offline waiting for the accounts to get upgraded to BC. Another 2 were amazed at how fast I had levelled >_>

You will get a few "fans", a lot more haters tho IMO. A a hell of a lot of indifferent people. If you make shamans, the star chain heal pattern is always a winner in a main city