When in the thick of a game, as the DM, I often refer to the other players by their character names. My players do also.Considering that's the equivalent of calling people by their username when interacting with them on a messageboard, I'd find that acceptably polite.
However . . . we also learn and use each others names and pronouns, seems disrespectful (and wierd) otherwise. As we gather in the game room, take a break, wrap up for the session, continuing to use character names would be wierd.







