Freenode is still using the same certificate after Heartbleed
Can be checked with "openssl s_client -host chat.freenode.net -port 6697 | openssl x509 -text" They updated their vulnerable openssl but did not change their certificate.
Since there seem to be no admin reachable about this, at least the users of freenode should be made aware of this. All of the servers have either been restarted or weren't vulnerable and the cert has now been replaced.