Why not change the way to command it to be more ... artificial player for everyone !
The command (/chatbot on/off) is to enable/disable the ChatBot for everyone, like a panic button.
For players it's somethings like:
When players say something with the namebot (default: alice) in the message for the first time, ChatBot...
- "Hi Alice!";
- "Yo alice";
- "Where are you AliCe ?";
- "Hey JoeBlow, do you know Alice ?";