The script I gave you will only kick "Regular" users (i.e. Users who do not have any status in the channel including voice, op, etc), which is what you asked for.
Now, keep in mind 3 things with that script. First of all, the client running the script MUST be an op for it to work. Second, if the client running the script joins, it will not kick anyone at that time because it is obviously not an op at that time. Third, make sure you change the channel name to the channel you want it to work in.
To test it, make the client that has this script an OP (or higher) in a channel and change the channel name in the script to match. Then have someone join the channel and don't give that person voice/op/etc. Wait the 5 seconds and they should be kicked.
