Board Thread:Spoilers!/@comment-4877635-20130614170253/@comment-22525977-20131018003110

because... poly relationships cause cancer?

The difference between smoking cigarettes and having/pursuing a poly relationship is that one is actually harmful (carcinogens! addiction!) and the other has no more potential to be harmful than any other type of relationship (arguably, there's less in certain types of poly relationships; where cheating is a problem in monogamy because of the lying and deceit involved, an open relationship or marriage doesn't have that problem because the whole point is those involved have other partners and everyone knows about and is okay with it).