A single person claiming something bad about someone else is easy to dismiss. Multiple people claiming the same thing makes it seem credible, even if all claims are false or exaggerated.1
Coordination of multiple attackers creates the appearance of multiple independent witnesses, when actually all are working together.
Pattern:
At scale: Fake social media accounts, coordinated review bombing, multiple accusations from "independent" sources that are actually the same person or group.
In institutions: Multiple people make complaints about someone (coordinated or actual), creating impression of pattern even if individual complaints are baseless.
Repetition creates credibility: The same lie repeated by multiple sources feels more true than the same lie repeated once.
Defense is expensive: Defending against one accusation costs energy. Defending against 10 simultaneous accusations exhausts resources.
Doubt lingers: Even if you refute accusations, the fact that multiple accusations existed suggests something might be wrong. The target is now associated with "controversy."
Reputation-Control: Reputation Control and Authority Exploitation — This is reputation destruction at scale.
Media-Techno-Manipulation: Media-Techno Manipulation — Coordinated attacks are amplified through digital platforms.