By all means tell them you don't like their style of delivery / lack of clarity or whatever BUT whether someone wears a wig or not is not at all relevant - so what if he chooses to look the way he does... it doesn't interfere with his ability to deliver the information so why should it matter?
These are human beings we are talking about - this chap has hopes, fears and insecurities just as anyone else... allow him his dignity!
i look forward to hearing your comments every time julia roberts gets slagged off on here!