Prevent bot from responding to "join"

I have a large discord server that is not exclusive to Rust. The issue I have is the bot DMs people whenever they say "Join." This is frustrating and confusing to my discord members as they are not expecting unwanted Rust bot messages. There does not appear to be any documentation for this or a way to disable it. Please document this and provide a way to disable it and any other trigger words that may not be documented.

I manage my many bots' permissions with a single role, so simply hiding channels from it will not work, as the bot role would override that.

There is a config setting called "Enable Discord Server Join Notification". Setting this to false will disable those messages
This is already set to false and still triggers.. I did discover that I can change the setting "Discord Bot Join Command" to change both the command and the trigger word. I ended up changing it to something obscure thatno one would say, but it would be preferable to have the proper setting work as expected.