Is how many many Silicon Valley horror stories begin. In the dot.com days it was "How working for a startup bankrupted me, and ruined my relationships." All because some situation forced a person to make the bet of whether or not their illiquid asset (stock in a private company) would ever become liquid. And that when it did, selling it would be more valuable than what you paid for it.
Clearly not everyone is as out there as the person mentioned in the article is, although I knew many people who had anywhere from $5K - $50K at risk because they had exercised and were holding. I had stock losses from the dot com implosion that I wrote off for over 10 years (at $3,000 a year) and it would have gone on for the rest of my life if we hadn't had a bit of long term gains to offset it later.