SimpleNoChat
Completely disables chat on the server, commands are still usable (with tab complete).
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SimpleNoChat
Completely removes chat from the server. Commands are still usable with tab-completing. A simple message appears in the server console when it is enabled.
This is the message you get when you try to chat:

Currently on Paper 1.21.x only. You may request other versions as well, as I plan to expand this project.