Maybe other people can smell it. I know for a fact that my genital area has its own distinctive musk - usually made stronger from the sweat from when I masturbate or if I don't shower.
Maybe if people get close to your genitals they will smell it...
>>45 I'm circumsized and damn glad I am - washing everyday is a pain in the ass - don't even get me started on camping trips who the hell bothers washing anything on trip out to the bush? I remember when I wasn't circumsised - dirt would got there and you had to be careful around it and all. Decreased sensitivity is worth not having to worry about having some bacteria get under your skin and find that that warm moist area is "homely".