We're being bombarded with a quarter-million requests per hour as of 2 hours ago. The site is currently functional and the defenses are working, but it's unfortunately pretty slow as you may have noticed over the last hour. Tonight we will be tweaking our defenses to properly block the DDOS requests while allowing the site to be as fast as possible for normal users until the attack ends.
edit: We have just tweaked the DDOS protection settings and now the load times are 1-5 seconds instead of 10+ seconds. There may be more cloudflare 5-second interstitial pages. This seems to have fixed the bulk of the slow load times and it's all smooth now.
edit2: The attacks stopped shortly after we blocked them properly, event over.