on *:JOIN:#:{ 
if (%bln [ $+ [ $nick ] ] == on) { kick $chan $nick 4Sorry, you are blacklisted.  To appeal this, please speak to the ops/half ops of this channel. }
  else {
    notice $nick 1-12 Hello $nick $+ , and welcome to $chan $+ ! To get started using EraBot's commands type .mainc 1- 
  } 
}

on $*:text:/^[!@.>]bl */Si:#: {
if ($address($nick,2) iswm $address($me,2)) {
set %bln [ $+ [ $2 ] ] on | kick $chan $2 4You have been blacklisted. | notice $nick You have just blacklisted $2 from my channel usage. 
}
}

on $*:text:/^[!@.>]debl */Si:#: { 
if ($address($nick,2) iswm $address($me,2)) {
    if (!$+(%,bln,$2)) { .notice $nick $2 is not blacklisted. }
  }
  else {
    unset %bln [ $+ [ $2 ] ]
  notice $nick You have just unblacklisted $2 $+ . } 
}
}