I was just wondering why my full name appears when I comment?

I'm used to being FranOnTheEdge when I'm online, and it gave me a momentary nasty 'exposed' feeling to see my name rather than my 'handle'.

I guess I can get used to it if I have to, but I don't really like it much.

Is it really necessary?

(Wondering if it's some sort of anti-spamming device)