This is really fishy, why would they use a proprietary forum software? They
got a dev-team after all. I recon it is much easier to pay one person from
the team to write a patch for an existing free program (if there really is
something important missing) than to accept the burden of proprietary.
P.S.: just checked out the German Ubuntu forum (www.ubuntuusers.de) and they
are not down. Their forum is powered by some Python application called
Inyoka, I quote: "Inyoka itself is based on a number of OpenSource-programs,
-libraries and -technologies."
Looks like someone had more luck. Or was that logical thinking? I sometimes
confuse those two. /sarcasm.