If you chat with us the #wcwu chatroom and you have a registered nickname, please be sure to log in before October 2nd and use the identify command with your password. Freenode is removing all expired nicknames (those that haven't been identified in 120 days or more) on October 2nd. Their blog announcement about it is
here.
If you have no idea what I'm talking about, that's okay - you probably don't have a registered nickname. Primarily, we register nicknames to ensure that our preferred nick is available to us at all times. Also, it allows us to have 'ops' (operators, who can kick or ban trolls, rude people, etc). The funny thing is that 10 years ago, that was more important the other way around - we don't get much in the way of trolls at #wcwu. :)