Ok, thank you. Maybe you know my next question. The ban list is saved at (by?) the server and whene the server had a reset than the banlist is empty. Is it possible to save that list?
You can implement your own list of bans and compare it to the server list when you join the channel and then ban anyone not in the server list if you want. Unfortunately, you run into an issue where another op unbans someone and then your script would ban the person again.