Right...and I'm saying that if he tweeted less and delivered more, he'd be taken more seriously than he is. Hype/salesmanship is part of business, but in the case of SpaceX and Tesla, they're delivering bespoke and high-end manufactured products. People are willing to wait for infrequent product delivery while tolerating sometimes-fanciful claims of great potential.

Twitter is different because it's a real-time mass communication platform, so the hype is received and processed differently. And outside of his fanbase, few people seem impressed with the changes as manifested so far and this is reflected in the response of advertisers.

Long tweets seem to work OK and offer a clear, obvious user benefit. I'm having difficulty thinking of any other examples.