Everyone seems to think that the DDOS was a network attack with malicious intent. Perhaps it was just a deep-pocketed potential investor doing due diligence to test some of the theories of various trolls. Or maybe it was the new major exchange that is about it add DASH, to see if instant send would continue to work in such a situation. Bitcoin has been stress tested in the past by Bitcoin supporters, and I think that DASH will have to prove itself in the same ways.