Shahrooz was born in Iran shortly after the 1979 revolution. He moved abroad when he was 10, and he said his family’s experience inspired him to become an Iran analyst. “I lost many family members in Iran’s prisons because of their activism,” he said. “I knew and my family knew [the regime] could not be trusted.” Among Iranian expats, personal pain was a commonly cited reason for condemning peers. I also called Sana Ebrahimi, a computer science Ph.D. student at the University of Illinois at Chicago, who frequently launches attacks against dovish analysts. She told me her father had once...