I went into BG's at 18 with my 5 shaman team and I can tell you most of my team was fairly annoyed and made comments about it for whatever reason (I wasn't paying much attention). After I saved the day with my excessive flame shock spamming a few times they started to like it.

I've also talked to quite a few people who understand the concept of multi-boxing and they just want to know more about it or wish they could do it.
There will always be those that don't understand it and send stupid tells and I try to point them to this site to make them understand but other than that I tell them to report me and enjoy when I don't get banned.