Better Moderation System

The moderation system for the multiplayer isn't agreed by lot of people, and, i've an idea :

Instead of getting banned from the multiplayer, getting ban from sending messages on the chat.

AND

Instead of getting banned from the chat of all servers, make 2 servers type (available in server.properties)

a server "public" : you are only banned from the chat on this type of server because often, you don't know people you are playing with.

a server "private" : you aren't banned from the chat on this type of server because a private server is a server usually with some friends you know.

It is all!
I hope you will read it