The 2 posts you are replying to are about professor Sarah Paine (with one parenthetical reference to Mearsheimer and Zeihan).

Professor Paine has never "actually worked as foreign ministers, presidents, chiefs of armed forces, heads of intelligence services, and in other similar positions", but she has studied the Russian language and Russian culture, and has made a career at the Naval War College in studying and writing on Russia's security policy and situation.

Should we avoid her, too?