%BNickServ SILENCE%B allows you to view and modify your NickServ silence
list.  Users on your silence list will not be able to send you private
messages.

Syntax: %BSILENCE ADD%B %Unick!ident@host%U %U+expiry%U %Ucomment%U
        %BSILENCE ADD%B %Unick%U %U+expiry%U %Ucomment%U
        %BSILENCE DEL%B %Unick!ident@host%U
        %BSILENCE LIST%B

The %BSILENCE ADD%B command adds a mask to your silence list.
expiry and comment are both optional, and may be after either
the nick/mask or after the comment.

The %BSILENCE DEL%B command removes a mask from your silence list.

The %BSILENCE LIST%B command displays your silence list.

