a hundred million dollars worth
That would be _really_ _really_ expensive, there are much less expensive ways to create disruption. Plus, markets have a fun way of absorbing that kind of crap and laughing all the way to the bank, it's very risky that it could have the opposite.That is really not that much money when you are creating 85 Billion USD out of thin air every month... :/
It gets exponentially more expensive. Each wave they run enriches normal users and traders who will naturally save some of their gains as bitcoins each time.
And as mentioned there has already been tons of volatility and still bitcoin exists.
If they are going to make say 10x more volatility than we've seen they are going to be selling coins for at least 100x less than they bought them for. Essentially endless huge injections of cash into the bitcoin scene.
If they buy one coin from me for $5000 I can absorb 100 coins when they are dumping at $5. There are a limited number of coins they can dump before having to turn back around and send the price back towards infinity. Even people who don't buy coins back for some reason will be so rich that they won't feel the need to bail on the way down.
People who do have the bizarre behavior of buying high and selling low to amplify an attack like this will go broke themselves and not be involved in future rounds. Many have already been shaken out by normal volatility anyway.
