on @*:JOIN:#:{
 if (guest????? iswm $nick) {
  ban -u60 # $nick 11
  kick # $nick Guest nicks are not allowed, /nick <New Nickname>
 }
}
on *:NICK:{
 if (guest????? iswm $newnick) {
  var %i = 0
  while (%i < $comchan($newnick,0)) { 
   inc %i 
   if ($me isop $comchan($newnick,%i) | else {cs op # $me } ) {
    ban -u60 $comchan($newnick,%i) $newnick 11
    kick $comchan($newnick,%i) $newnick Guest nicks are not allowed, /nick <New Nickname>
   }
  }
 }
}