Well, the server is back!
And now we have nether!
So, are you feeling lucky?
Actually, we spawned in a very nice nether location, on an island near the "sea level" So we can easily build bridges hopping between the islands to reach other portals, and we can build small towers to reach for the glowstone stalactites.
Sorry for the cobble box around the spawn portal - Because of ghasts the only materias which are generally safe to use on the nether are stone, cobble (and mossy) and bricks - everything else risks being destroyed by the ghast's, so better only used inside buildings.
Thanks for the update, UA!