"This was flagged to my attention and I've reviewed all the interactions between the author and our team [cloudflare]. The site in question was using the free version of CloudFlare's service. On February 2, 2013, the site came under a substantial Layer 7 DDoS attack. While we provide basic DDoS mitigation for all customers (even those on the Free CloudFlare plan), for the mitigation of large attacks a site needs at least the Business tier of CloudFlare's service. In an effort to keep the site online, our ops team enabled I'm Under Attack Mode, which is available for Free customers and enhances DDoS protection.
The attack continued and began to affect the performance of other CloudFlare customers, at which point we routed traffic to the site away from our network."