This code reads the newnick from the text
but does not banned the newnick
What is missing to be banned newnick ?
Code
on *:NiCK:{
  var %e 1
  var %c $newnick
  var %d $lines(bads.txt)
  while (%d >= %e) {
    if ($read(bads.txt, w, *, %d) isin %c) {
      ban -ku77200 # %a
      dec %d
    }
    else {
      dec %d
    }
  }
}