Sometimes users complain about other user’s politeness.
This is the last I recall:
Few days ago I discovered that chat is disabled for users who don’t register an email address.
These users just can’t say “hello” and it isn’t nice to seem “rude” when you just can’t type anything.
BTW, I also discovered that these users can share variations in the game chat, that is a little confusing: “that guy doesn’t talk to me but tells me how to play, so rude!”. Isn’t it?
I don’t know which would be the best way to manage it all, but seems worth thinking about.