Then appropriate remedies should be pursued, but in what way have Tesla shareholders as a class been damaged? In the net, I would wager that Tesla shareholders are still quite happy with Elon at the helm.

As a shareholder, I’m still long, but want Musk to be held accountable. Incentives are important.

That accountability is more likely to come from the SEC's previous punishment than this lawsuit. It seems like many of the people here are acting as if this shareholder lawsuit is the only recourse against Musk's actions. My original comment was made in the context of that punishment already being handed down.

That punishment was a slap on the wrist compared to how much actions like this poison the public markets. Knowing the SEC won't act with real force in these situations will encourage penny stock CEOs and other characters to do the same thing.

Company resources have to be spent on this crap, soley because of his tweet. If I were a shareholder, I would be tired of the wasted resources spent cleaning up after his twitter account.

If you don't like how he runs the company don't be a shareholder, it appears you aren't. It'd be hard to think that Tesla would be what it is without him. In fact losing him, is probably the biggest risk they face.

I disagree because (1) I don’t expect Twitter as an official medium for disclosing fiduciary information (2) There were no correlating news articles and (3) the obvious joking signal of “420”.

Then you haven't read Tesla's SEC disclosures which specifically clarify that Elon's twitter account is an official news source for Tesla.

Tesla later issued a press release where they doubled down on the seriousness of taking tesla private: https://www.tesla.com/blog/update-taking-tesla-private

So you're just wrong on both counts.

From a Tesla Form 8K in 2013: “For additional information, please follow Elon Musk’s and Tesla’s Twitter accounts.”