You can also do similar to the /ban alias you had.
Code:
alias kick {
  inc %kick.number
  !kick $iif(#* !iswm $1,$$chan) $1- %kick.number
}
alias ban {
  if -*k* iswm $1 { inc %kick.number | !ban $1- %kick.number }
  else { !ban $1- }
}
I mofified the /kick alias slightly smile