Yeah, we're back!
All the spammers we encountered in December overloaded the sites monthly CPU quota. It reset when the new month rolled over.
For those interested, there's been an upgrade to the software that runs the site for a while now, one which I ignored, and allowed the Ukrainian Spammers in. My bad. I installed it today, but now some of our addons like the Thank You button need to be updated too, so I have a little homework to do.
My pants don't smell like sunshine anymore.