(Another noder had originally written that body hair is unhealthy, unsanitary, unsightly, and that, now that we have
shelter to keep us
warm, it
no longer serves its
evolutionary purpose. That
writeup has long vanished.)
If you're going for that argument, the same goes for the hair on top of your head. If you're in the sun enough to risk sunburn, you can wear a hat.
As near as I can tell, body hair is no more unhealthy than, say, applying a sharp blade to every square inch of your skin on a regular basis. Sure, some of the hair traps sweat, making you smell bad, but that's hardly unsanitary. Far more unsanitary are the little nicks you would get from shaving, which contaminate your environment with blood and leave you prone to infection.
I believe the previous noder's views on this matter are pretty much directly derived from the Victorians; look at the cleanliness/success link in many novels of the industrial revolution in Britain and the U.S. (Charles Dickens and Horatio Alger come to mind). I'm also willing to bet CzarKhan is American---merkins (it works on so many levels!) have this bizarre fascination with cleanliness.