/help raw events

You can process non-numeric server messages by specifying the name of the event:

raw PROP:*mirc*:/echo 5 $1-


using /silence on ircu returns
<- :LtGuide!~lt01@aphore.com SILENCE +*!*@whatever.org
in the /debug

with the bit from the help file, you can create:
raw SILENCE:*:{
echo -a $iif(+* iswm $1,added,removed) $right($1-,-1) ...
halt
}


evil is in the eye of the beholder