I personally was thinking ZHP-Mafia members only, though they don't have to have a ZHP, just be a member on the site. We could also use it as a marketing tool where people could ask what's going on and we could refer them to the site, but I was thinking this to be a get-together for those that know each other online but not in person.
In the end, I don't care who "else" is there as long as I get to meet all of you.