I really like Musk. I like his vision and his ideology and his overall non-nonchalant attitude toward business. I like how he disrupted the auto industry and paved the way for electric vehicles. But that Tweet was stupid and he should be fined for it. There are rules in place for what types of announcements high executives can make to the public and every CEO is aware that you cannot make announcements that influence investor behavior and attitude. These rules are in place to protect the public from insider trading and other forms of stock price manipulation. It is not only rich people who invest in stocks like Tesla, its also average people who are trying to save for their retirement. As a high ranking exec, he knew it was something that shouldn't be done. If it was a lapse in judgement then he should be fined for being stupid. If it was to manipulate the price then he should be fined for putting the public at risk. Just my opinion