Interestingly enough, we had someone pop into the 24hr donationcoder chat channel yesterday who made a brief announcement that they had been "stress testing" the server and that there was no maliciousness directly explicitly at us, and were about to stop in 30 minutes, and then they left the channel. Wasn't clear if they were going to stop for good or just in preparation for round 2. But the attacks did stop after that, so it seems to have been legit. Very strange experience, and I wish I had had a chance to ask them about their motivation and the tools involved -- it was quite impressive to see so much traffic coming in so fast from every corner of the globe (though I could do without seeing that again!).