No, anonymity is refreshing because a world where you are always on the record with your most formal identity with everything you say runs largely against the ways humans develop their worldviews: by trying on certain opinions, sorting themselves out, and participating in low stakes interactions where they can make mistakes and learn with minimal consequence.

This doesn't mean 'planning a coup' is one of these contexts, but you are focusing on a very narrow example of the broad social system impact of anonymity in online communication.