Someone

on $*:TEXT:/^(pcw|world)/iS:#:{ 
  if (!%rank) { halt }
  if ($nick($chan,$nick,vho)) {
    notice $nick The PestControl World is: %rank
  }
  else {
    notice $nick Voice or higher only.
  }
}
on *:TEXT:!setpcw*:#:{
  if ($address($nick,2) == $address($me,2)) || ($nick isop $chan) {
    set %rank
    msg #$chan The PestControl World has been updated by $nick $+ Type !pcw or !world to see the world.
  }
}