They are taking a massive DDoS, not only it is having recurrent netsplits, the services (chanserv, nickserv) are getting up and down, and lots of bogus users are logging in and off (right now I am seeing a 31NAEEEF5Q for example... and some minutes ago I saw 18 users in the same style in a channel that had 3 real users)
It started experiencing frequent netsplits as the Super Bowl stream began, and went down completely a few seconds before the Half-Time Show, then came back up for a few seconds right after it ended. Since then I've been reconnecting over and over without being able to load any channels.
It's just come back up as of five minutes ago, with normal chat working.
23:22:03 Looking up irc.freenode.net
23:22:03 Connecting to irc.freenode.net [127.0.0.1] port 6697
23:22:03 warning SSL handshake failed: Connection refused
23:22:03 Connection lost to irc.freenode.net