Believe it or not, one of the companies that I'm most worried about is Coinbase.
For example, go look at their employee roster page at the bottom.
https://www.coinbase.com/aboutIn in the past 2 years, I have literally watched that page grow from about 5 employees to what you see now on that page. And they just keep adding more employees. At the rate they are going, unless something drastically changes I don't think that they are going to have a business model that will support all of that headcount and still make a profit.
That's a lot of mouths to feed. It's a natural reaction to assume companies that suck in millions of dollars in funding from fancy people and have lots of bells and whistles actually know what they're doing.
The dotcom thing proved that they often, er, don't. Hopefully lessons have been learnt.