Diplomacy is about communications first and foremost. The logic that tells us that communication can only be between two parties is rather flawed. I suppose that it needs to be explained to the dense and unenlightened here that alliances in Diplomacy are not in any way constrained to two nations. Multi-nation alliances are extremely powerful, effective, and more importantly, fun. Modifying the chat feature to enable this would be a huge boon to the community. Why would anyone object to such a feature being added?
Here's one of the objections from earlier today:
"From my personal experience, when an alliance coordinate moves, it is most of the time one single player who makes suggestions to the team."
I wonder who that 'one single player' is in this player's personal experience? Could it be the person objecting is typically the 'one single player' that likes to dictate everyone else's moves?
Ordinarily I wouldn't go out of my way to publicly analyze and critique another player's style of play, but since our objecting friend here has opened that can of worms with his objections to this and many other helpful discussions for improvements of play, it bears noting that is very much the behavior of a control freak. He wants things his way, and he's not shy about letting you know that. He has all the right moves for your nations, just ask him... There's no need to talk to other nations about it. There's no need to be held accountable for the content of the conversation.
Now most Diplomacy players can be accused of controlling behavior, but the art of the game is to effect what we want with diplomacy, which is a form of communication. Why should the methods of communication be limited to two party conversations? if you don't want to engage in multi-player negotiations, then don't respond....
And there's the real objection. This feature severely constrains the passive aggressive, intimidation and control, deception through semantics style of play. If these conversations were disseminated to more than one person, well, it's much harder to lie to multiple players at the same time. And good heavens, what if those two nations might start privately discussing the content of the message?
Again, you have to ask yourself why would anyone protest such a feature?