Silence
From Scriptwiki
Adds or removes an address from your silence list.
/silence [[+|-]<mask>|<nick>]
This command silences/unsilences the specified nick/mask. The silence works server side, unlike ignore you won't receive the messages. The number of silences you can set is given on connect by raw 5 (normally 15).
Results are replied with a raw.
Examples
silence
Shows your silence list.
silence *!*@*moo
This would silence every user with a mask matching *!*@*moo.
silence +fishbot
This would silence the nick fishbot.
silence -fishbot
This removes silence of the nick fishbot if its in your silence list.
silence -*
Removes all silences