A simple NodeJS app to let people know you don't use Messenger, and that they should try on better platforms.
Messaging /stop in a thread disables the bot, /resume removes that
thread from the whitelist. Group chats are automatically whitelisted.
The personal thread whitelist isn't persisted (currently).
This makes use of the very handy facebook-chat-api Node module.
Copy the credentials.example.json file to credentials.json include your
FB username and password. (Remember not to post this file online,
.gitignore should exclude it.)
It doesn't like two factor.
Run npm install and npm start in the project root.