Have there been any successful sustainably profitable tech companies to go public since Facebook?
AMZN wasn't profitable for 7 years, then fell to unprofitable again in 2012 and 2014[2].
AAPL was net in the red from 1996 to 2003[3].
So, were all these companies "Ponzi schemes" during the eras where they were investing in growth?
And if your only qualification is to "be profitable" for something not to be a Ponzi, then why are you here ragging on places like Coinbase? Coinbase is a 5.7 P/E company with $4b in net cash right now.
[1] https://www.fintopea.com/quote/FB/income-statement
Everyone though that Amazon would never make a profit. Even today most of Amazon’s profit comes from AWS.
If your definition of "Ponzi Scheme" is simply that a company is profitable the moment they go public, then not even the original Ponzi Scheme was a Ponzi Scheme.
Disclosure: i just loaded up on this today
You'd have to normalize of the giant tidal waves of financial flows to see of YC IPOs are good or bad thing in reality.