To ban customers by frequent expression, use: eag-ban-regex with a daily expression to match the username in lowercase If you use /op on the server, Remember the fact that for those who "/op LAX1DUDE", a player joining as 'laX1DUDE' or 'LaX1dUdE' or 'lax1dude' will all have /op much too. https://vanshgamer.com/eaglecraft-minecraft/