Tinted Windows

Why is it that everyone these days has to have the darkest car tinted windows, they dont seem to want anyone to know who they are and i suppose it gives them some sort of Hollywood style anonymity...what i find strange is that they love to wave to you when it suits them to be seen...do what i do, ignore them and pretend you didn't see them...its hilarious watching them wave like lunatics .hoping and waiting for their wave back...no don't give them the joy...i don't....