Just curious, but are you looking for someone to live with you or just someone regular to play with? If the latter, one problem I could foresee is that while you may want to be exclusive, he may not (in the event that matters).
I know little about the ins and outs of poly relationships, but from what little I do know poly sounds more like finding an additional mate rather than just a regular playmate. Swinging is usually something less exclusive.
In any case, the advice given about being more specific in your profile regarding what you're looking for and checking out/posting Hot Dates sounds reasonable to at least start with.