I don't doubt you are who you say you are...but the fact is, on the net, a person can claim to be anybody and pictures don't mean that's really you.
Well, I could post dozens of pics of me on the Internet to show that I'm really a 19 year old girl. Geez, If I want to, I could even put some pics online of me making love with my girlfriend. :D
As an artist myself, who has on occasion drawn nudes with live models, again I agree...if you got it, why hide it...if you don't...grab a towel and get off the beach :D
But for me, I just like them for their artistic value. For me, the human body is a temple, a sacred item that people should respect and worship.