Probably not much. But it's nice to minimize attack surfaces and annoy arpspoofing skids which might be on your LAN.
Re:Freenode IRC is down
by hornetblack on Monday February 03, 2014 @04:09AM
(#7169590)
Some people may reuse NickServ passwords for other more important things. Those passwords are just sent over plaintext.
What purpose, other than eavesdropping, is there for performing MITM on irc?