This is just speculation and for the record no official statement has been made by E-Trade or Morgan Stanley

Citron Research was publicly humiliated when they first posted trying to humiliate GameStop investors back in Jan 2021.

The SEC is the Securities and Exchange Commission and are supposed to be in charge of market regulations, transparency, and fairness.

BRK-A is immediately suspended from trading and goes back to over $600,000 that same day. Whoever was able to purchase some of these shares at a discounted price will get the trades reversed. A few other stocks experienced similar price drops.

They start to blame Keith Gill for apparently single handedly causing the price of the stock to go up by simply posting his GameStop positions. It is quite ironic as every single day the media advertises their own stocks and pushes their own agenda about certain companies.

This one single post gets broadcasted around the world on news segments, articles, and social media.