We had a large denial of service attack that was first pointed at one of our customers, then pointed at our web site. We did our best to address it as quickly as possible. During the attack, nLayer's blackhole BGP session stopped working properly, so we were unable to automatically blackhole IPs with nLayer. We also discovered that Cogent's blackhole BGP session had been misconfigured (they messed up the config after we added a new prefix). Cogent was fixed after about 9 minutes, nLayer may be resolved (we're working with their NOC now toward resolution).
We are bringing more capacity online with Cogent, hopefully by the end of the month. Additionally, we're either looking to add more capacity to nLayer or replace them altogether soon. We also are working on bringing in another provider soon as well.
As for the Twitter account, please request to follow, then open a ticket to request being added with your twitter username. You must be a customer with active service to be added.