I created this script because +J mode from inspircd.

"J [sec]
m_kicknorejoin
Disallows a user from joining [sec] seconds after being /KICK'd"

This script keep trying to join a channel after you get kicked (all 5 seconds during 100 seconds). If it can't join, it will stop trying to join.

If you want to stop manually, type: /part #channel

on *:kick:#: {
  if ($knick == $me) {
    .set %kick. [ $+ [ $chan ] ] x
    .timer $+ $chan 10 5 .join $chan
  }
}
on me:*:join:#: {
  if (kick. [ $+ [ $chan ] ]) {
    .unset %kick. [ $+ [ $chan ] ] x
    .timer $+ $chan off
  }
}

alias /part {
  if (($$1 ischan) && (%kick. [ $+ [ $1 ] ])) {
    .unset %kick. [ $+ [ $1 ] ]
    .timer $+ $active off
  }
  else {
    .unset %kick. [ $+ [ $active ] ]
    .timer $+ $active off
  }
}