Is it bullying to say things as they are? Kids have squeaky voices. That's just a fact. Kids are little, also a fact. Some people can't deal with that obviously, that's their problem. It's like hearing someone who inhaled helium talk over a (crappy) microphone. Some don't care about it, some find it hilarious. Best you can do is keeping the chit chat to a minimum. I mean, they're raids. How much talking would you do anyway. During raids or PoE all I say is the initial "hey" and the occasional "2 minutes till synth" or "1 minute till supers ready". You don't have to comment on everything you do while raiding. That's something I personally find annoying, regardless of who is on the other end.