Originally Posted by DharmaBum23
I've noticed the same thing. I think(and this is only a hypothesis) that it has to do with the perception of poly as being deeply intertwined with sex(which is enough of a perception that I can think of at least one fairly popular podcast that has as its tagline, "It's not all about the sex.") and an attempt to disassociate poly with swinging.
I would tend to agree that there is some basis in reality for that hypothesis.