File a polite complaint that they are excluding members of the community unnecessarily, and that alternatives like meetup.com exist so you don't even need to run your own web server.
The likely answer will be : "well, you could sign up to Facebook just as easily as you want us to sign up to meetup.com. Except, everyone is already on Facebook"
File a polite complaint that they are excluding members of the community unnecessarily, and that alternatives like meetup.com exist so you don't even need to run your own web server.