Well, in the title of the network, it says "Connecting young polys across NY State and beyond" On the sign in page, where you can register to sign up, it says "New York Polyamory Central The Next Generation. Aimed at polyamorists ages 18-35 in New York & the Northeast. Open to all, ages over 18."
That seems pretty clear.
Also there are only two questions being asked (aside from demographical info such as sexual orientation, relationship status and spirituality) and they are good questions that often get asked on this board:
"What values do you wish to see reflected in this poly community?"
"What does polyamory mean to you?"
I don't read these questions as serving the purpose of being exclusive or weeding people out.
I wanted to reply to this so that people who may be forming opinions on this do so with more information than less.