We need to study how putting normal social activities on the Internet makes them too big to handle. Examples:

In my town, a teenager put the invitation to his eighteenth birthday picnic on Facebook. 400 people showed up, many of whom he didn't know. The party became a superspreader event.

The president invites all his unhappy supporters to a rally in Washington, using Twitter, etc. 8000 people show up, and he has made no preparations, not even portapotties.

Somebody finds out a fund is shorting Gamestop and maliciously puts the news online. An unknown number of people decide to damage the hedge fund, not understanding or not caring that they are actually hurting the investors, not the manager so much. The manager probably has private assets. For the investors, their life savings probably have vanished.