What the hell is the point of circumcision?

plz explain. Is it like emo cutting? Does it make you look cool? Should I try and circumcize myself? Am I spelling it right? Or am I asking too many questions?

I have foreskin (lovin it) and I can't imagine not having foreskin being good. I'd hate to feel the fabric of my boxers rubbing against the head of my penis, that would be irrititating.