Yeah, give them some time, they're still new at this. By the look of it they've grown twice as large in the last two weeks. With this surge in activity and popularity, maybe combined with server upgrades, I'm guessing they need some time to figure out the balance between advertising revenue and paying out to users. And look on the bright side, the pay date has still not passed in some time zones.

I don't think they intend to disappear after they've invested work in the site and in accumulating users, but I do agree they need to communicate more openly with their users when there are difficulties.