Polyamory in the News has a post which I totally haven't read yet titled Polys: Winning the Race to Define ourselves... So Far. As I haven't read it, I have no comment on its content, but I have a complaint about the title.
I am poly. I am a poly person. I am very uncomfortable with being referred to as a poly, or to us generally being referred to as polys.
I'm similarly uncomfortable with referring to people as blacks, or gays [and I really hope I don't]. I think, in general, turning an adjective which describes something about a person, and particularly something about them for which they might be marginalized, into a noun has a strongly dehumanizing effect, suggesting that it is the whole of their identity and they are thus dismissable.
So, just a reminder, if you use a couple of extra syllables to use an actual noun, you cost yourself a couple of syllables or a few keystrokes, and you're much less likely to hurt someone else.