If you'd invented in Uber 10 years ago, you'd be rich. Let's say you paid $5 (though it's probably closer to $0.01 if you got in on their seed round in Sept 2010). With 250k shares, even at the "abysmal" price of $45/share, that's still a cool $10 million, before taxes. As a seed investor, you liquidated on the day of the IPO and what happens to Uber no longer particularly matters to you - you've already made a giant pile of money. It's interesting as a point of curiosity. Like updates on a friend/acquaintance's cat.

Of course, you'd have to be rich in order to have done that in the first place (an "accredited investor" as defined by the SEC), and this ignores the other investments you made in 2010 that went bust.

Later investors got screwed by the poor IPO performance, especially those that bought, hard, into the "moat" argument. Hell, softbank is possibly underwater on its investment.