This "dead" server has over 10,000 players throughout all the worlds. I believe it's the 3rd largest server, behind .de and .net, though I could be wrong on that. Probably brings in great revenue for Innogames, and provides an alternative to .de and .net, where it's the same old people and shenanigans each time.
If you mean closing the world, it's not quite dead yet. However, if you want to submit a ticket in-game about closing the world to recruitment, feel free. It might go through, just notify the TW.us team through that ticket.