Guess I'm very lucky on my server. I haven't had much response at all and can't remember any negative response. Only one person who didn't understand why I would want to level multiple characters at the same time, but even he wasn't negative. Most conversations are more like:

Random person: multi-boxing?
me: yep

and that's it.


I've got more response from people while I was area effecting with my mage then while MB'ing. And that response sometimes was negative, people thinking that I was a bot, complaining about me killing all their quest mobs at the same time, etc