...Do you mean, ahem, pics? Absolutely not. That's just nasty.
Face shots? Never occured to me to do so. I guess if someone wants to see what I look like, they can certainly ask for one, or check out my profile or whatever. But I think it would be a bit odd to send unsolicited pics, at least without some context.
Absolutely NOT. I don't like unsolicited pictures sent to ME, so why would I send them to others. On the rare occassion that I DO get asked for a pic, I will still encourage more communication betwixt them and me before sending them a picture of me. Mind you, I have "profile" pictures on nearly every site that I frequent, so everyone has a pretty good idea of what I look like.