I would like this to be like a whisper-chat with multiple participants, so three-four or more people could have their own chat channel without smearing the global chat of the server.
This sounds more useful and has not any spam opportunities.
Not supported the idea of whispering multiple players asunder by one command, though. The original suggestion sure looks like just mitigating spammers employment.
it would kick people who spammed of course, if the devs didnt implement this originally it would happen and they would most likely do it then. tb has one for ingame chat already why not use it here too?