Code:
On ^@*:Text:*:#: {
  if ($chr(3) isin $1- || $chr(3) !isin $1-) {
    var %ct = $chan, %dt = echo -t %ct $+(<,$nick,>) $1-
    if ($nick isop %ct) %dt
    else {
      $replace(%dt,$1-,$strip($1-))
    }
  }
  haltdef
}


Or schaefer31's way if you want to kick the users. smile

-Andy