The reason is vague, and only publicly mentioned after I asked for it last night on their twtter account...
I think it might be their server clocks that are out by 8 hours, as I can't see anything wrong on the messageboard end, and my new emails are coming in with the same 8 hour time difference.The cause of the issue was that we experienced technical issues with our storage cluster. Due to the actions we've undertaken to migrate off of it, we are actively moving everyone to more modern and reliable infrastructure.
Unfortunately, a lot of legacy systems are proving more difficult to migrate than we had hoped. ColdFusion & older PHP servers are affected. We will be working through the night to continue bring services online.