I think that the idea is that the total volume is low enough that this person thinks they can manipulate the price. They say "it's a bubble, it's going to pop"

I think that the idea is that the total volume is low enough that this person thinks they can manipulate the price. They say "it's a bubble, it's going to pop" and then they sell $30million in obfuscated coins. Everyone goes "IT'S POPPING!" and they sell, and then he buys $470million in coins.