We're currently getting hit by the wave of spam doing the rounds on the Fediverse. If you want a bit of background see this but be warned, it's annoyingly stupid.
So from time to time while we work on a solution, we'll shut that community to new posts if we don't have anyone on hand to deal with the spam or we need time to clear the backlog or overnight.
It's currently closed at the moment.
If anyone has a news story burning a hole in their pocket that must be posted there then drop it in here and one of the Admins will post it. Comments should be unaffected, so discussion can carry on.