Cobie decided he wanted to make a record of his prediction, so he tweeted the SHA-256 hash of the string "Interpol Red Notice for CZ". Typically, this would allow him to later reveal the seed, allowing him to prove after the fact that he had indeed made a correct prediction. Why? I don't know. Bragging rights I guess?
Anyway, according to Cobie, one of Cobie's inner circle leaked the seed, and the contents of Cobie's prediction were widely circulated on Twitter. Some thought the prediction was inside knowledge of events that had already transpired. Someone else began circulating a doctored screenshot of the Interpol website, purporting to show a red notice. People began offloading their BNB tokens (the native token for Binance and Binance's blockchain), causing a sudden 3% dip in the token price. Bitcoin also fell on the news.