I didn't enjoy my tildeverse experience personally.. there are others like SDF:
My primary use is for my relayed gmail, but it's indeed fun to be parked on a box all day with people just like you.
On my debian pc. Probably a firefox bug? Oh, wait.. The second time I tried sdf.org it showed up correctly, so I'm guessing it's a temporary DNS name resolution where it fails on the first attempt.. Doesn't make sense!