Forums Scripts & Popups changing anon or Guest nick?

ive made a modified version with 3 warnings... are you telling me that if two anon nicks joined close together it wouldnt work?

on @*:JOIN:#channel: {
if (Anon* iswm $nick) {
.notice $nick Please change your nick within 2 minutes, or you will be kicked.
.timera 1 30 if ( $nick ison $chan ) { /notice $nick This is your second warning change your nick or be kicked 1 minute remaining!!
.timerb 1 90 if ( $nick ison $chan ) { /notice $nick This is your LAST warning change your nick or be kicked 30 seconds remaining!!
.timerc 1 120 if ( $nick ison $chan ) kick $chan $nick Please change your nick
}
}
}
}