Poly people must be more outgoing than everyone else. Feel free to add to it. Poly people practice tantric sex. Poly people are all white. Ooh, good one.
Poly people are all middle class or upper-middle class.
All poly people always do full disclosure. Galaxy Pkwy, Ste. Feel free to add to it. Poly people are just in it for the sex. Polyamory has nothing to do with sex.