Drose is a professional short-seller. Assuming he was already shorting AAC, it looks like he turned a substantial profit not on the company's weakness but on his ability to publicize it among traders.
"Short and distort" is securities fraud, the mirror practice of "pump and dump". There's no particular sign that Drose distorted the situation, but I'm curious where the lines are.
Does anyone know whether misinformation is required for this practice to rise to fraud? I assume totally-factual statements about a company would be safe, but I can imagine a lot of grey areas around opinion or hypothetical statements. If a political writer shorts a company, then starts loudly calling for it to be regulated or investigated, is that fraud? How about if a politician does so, without introducing a law?