I'm no health-saint either, but smoking tobacco is much more harmfull than smoking Marijuana for the obvious reasons.
Isn't it also true that smoking marijuana hasn't been linked to lung cancer?

It is fairly logical that a bong filters out alot of THC: THC is water soluble.
I thought THC is fat soluble. Although I believe I read that bongs don't filter out the tar crap as much as it filters out the less bad part of the smoke and coincidentally some of the THC.

Perhaps the best way to do cannabis is to eat Spacecake, drink Marijuana Tea or inhale Vaporised THC. Vapors don't contain any tar and don't leave any residues on your lungs as all of it is able to be taken up into the bloodstream via your lungs.
It is! Although, I have never had any luck with tea. I think you have to cook it in something fatty like whole milk (make some hot coco with weed).

Has anyone ever tried quidding Marijuana or Hash? Or should I be the first to give it a try?
Try it and tell me if it works.