Hello Torn Banner. As said in the title I think that in-game you should always know who a moderator is.
Being kicked without warning without even a proper explanation as to why (yesterday I received just "This"), is very confusing and even unnerving.
I'm all for moderating the game but this just ends up looking like it is someone hacking.
So yea, if you're going to use volunteer moderators in-game, at least have (moderator), after their name. And perhaps require them to use a template for the messages. It would look 10x more professional.