This plugin disables the “say” command in the Sponge server console. It also disables the default /say command for users. You can enable the /say command for your server staff with the disablesay.say permission.
Permissions: disablesay.say - Enables the /say command for a user
This plugin was requested by SacrilAl in this thread:
https://forums.spongepowered.org/t/block-say-command-for-console/
Some have mentioned that it is possible to disable the “/say” command in the console with some permissions plugins. This plugin was developed for those who need to disable the command without a permissions plugin or where they want to override the default implementation of the minecraft say command.