I put ftp server off on both my unraid servers, but always when i check the setting it's always enabled. Makes me very nervous, as if someone enables it without my knowledge. Is there a plugin or docker that needs that setting and enables it?

The Tips and Tweaks plugin might (I can't remember)

 

But, if you have no users defined as having access to FTP, it's actually not running, regardless if its enabled or not.