Join flood protection

ON !*:JOIN:#: {
  if (%joins_ [ $+ [ $chan ] ] == 5) {
    if ($me isop $chan) { unset %joins_ [ $+ [ $chan ] ] | .mode $chan +i | .timer[UNSET_MODE_ $+ $chan $+ ] 1 30 mode $chan -i | return }
  }
  inc -eu10 %joins_ [ $+ [ $chan ] ]
}