Salvi sitis omnes!
It seems the YLE Colloquia Latina forum is up and running again!
But you have to remake your account:
http://chat.yle.fi/latini/viewtopic.php?f=1&t=572
I hope to see many of you there, writing in Latin with us!
Valete quam athletice!
Oh, sad memories are recurring… I tried to sign up lots of times, but they kept banning my email adress and never replied to the questions I asked them because of this. I guess I won’t be trying to sign up this time…
I had similar problems before, now resolved. Do try again! I had a hell of a time with the old forum; now it’s problem free.
Is this reopening permanent? 
I visited the site a couple of weeks ago, when it had just reopened, and then - surprise! - it dispeared again.
A couple weeks ago it wasn’t opened yet. A think Mercurius mentioned some initial problems in that time period. It’s been officially open since last Friday.