I am not repeating myself because no one listens. But I will make this point.
So called "private chat channels" are essentially your whispers. They improved whispers by letting you do so with up to three other people are the same time! YET ANOTHER CHAT IMPROVEMENT!
Private channels are ones that are custom made (and yes, you can do this in SC2) and those have never really been moderatable unless you had a 3rd party bot or a clan leadership role in WC3.
wow being able to whisper 3 people at a time??? omgggggg no way such an improvement
I could whisper 25 people at a time in bnet 1.0... /f m sup guys.
That is not really a whisper at that point, more like a mass message. You can do those too. if your say 25 friends really wanted to be messaged, just sit in a custom chat room and message in that. You can even be in several custom chatrooms and private chats and one public chat at the same time. improvement? yes