I really can't relate to the whole swinging/poly division that exists for some. I am open, and I am poly. Both come from the same place for me, really, from feeling like I wish my partner(s) to have all experiences they want to have and feel most happy and satisfied in life whether with or without me.
Yet, not everybody comes from the same place, so it is understandable. But I don't think the polarisation benefits anybody (as it never does).