Just don't worry about the other people - at times, I've had loads of grief whilst IAing, at other times none, but your 5 chars just cruise through IAs, so forget about the other people.

And when you do get really bad grief, raise 5 tickets about it and see if that wipes the smile off their face!

In the end, I turned off the /raid channel when doing IA - ignore them and just get on with levelling