I'm not sure what's happening but my chat distortion is not working for me.
Brewery Config Version: 1.8
Chat Plugin: Venture Chat
Evidence:

Please set these three config options to true:
enableChatDistortion
logRealChat
distortSignText

1. Test again and see if you get a line in the console or server log saying 'CraftyBr tried to say ...'
2. Test if you write on Signs they get distorted

Maybe the Chat plugin only works at Bungee level?

Okay so apparently there was nothing wrong with the plugin, there was just a small error in my config that caused chat distortion to not function properly.
Problem Resolved.