This is a little CSM I made for quick and easy private messaging, inspired by the PM system on IhrFussel's server and ChimneySwift's CSM. It is designed to be as user-friendly as possible.
Uses only one command
Can send messages to multiple players
Supports wildcards (sometimes)
Can send a message to previous recipients
Note: Wildcards will only work if minetest.get_player_names() works properly. Generally, if you cannot see the player you want to message, wildcards will not work.