Oh, also you have a troll who has posted a bunch of curse words. You probably need to filter for that. One thing that might solve your chicken/egg/community pr

Oh, also you have a troll who has posted a bunch of curse words. You probably need to filter for that. One thing that might solve your chicken/egg/community problem AND troll problem is an invite-only list of a few dozen people.. make your product seem scarce and special, and then take great care of the few users you have and grow that way.