Help for unignore

Usage:  /unignore user[,user,...] [all|private|public|disc[,disc,...]]

If you want to undo a /ignore, try /unignore. For example, to stop ignoring 
private messages from a user try, "/unignore user private". To stop ignoring 
public messages try "/unignore user public". To stop ignoring any message try 
"/unignore user all".

For more flexibility you can use unignore to make exceptions to your ignores for
a person. For example, if you are ignoring seinfeld publicly and privately you 
won't see any of his messages anywhere. However, if you suddenly want to see his
messages to, say, the emote discussion; you could simply type "/unignore 
seinfeld emote". You would then being "ignoring seinfeld privately and publicly 
except in emote". To reverse this, use ignore (i.e. "/ignore seinfeld emote").

(see also: ignore, who)