This version adds a new config option!
Ignore Non-Alphabetic Characters
Default: true

This new config will remove all non-alphabetic characters both from messages sent and from Bannable Messages! (For checking purposes only, the sent messages WILL NOT VISIBLY CHANGE and neither will the config)

This effect stacks with Ignored Characters, meaning both can be enabled at once. Additionally, Ignored Characters has been updated to also removed Ignored Characters from Bannable Messages.
This means you can ignore any character ever, as opposed to only YAML-allowed characters.

(Note: !# are no longer automatically removed from messages for checking purposes)

Example:
Ignore Non-Alphabetic Characters: true
Bannable Messages: can i have op?

Player-sent message: "can i have [email protected]$^*%##@$%$^&*^&"
Player has been banned.