I think it's archetypal VC-think to make the indigent give up identity in exchange for trinkets. That's like Discover giving me a t-shirt for filling out a credit card application. I also think it's appalling that someone standing up a blockchain is using "fraud" as his argument for invasive privacy breach. It's on the fucking blockchain, dumbass. One fraudulent transaction makes every transaction from that address suspect, and every address transacting with that address suspect, publicly explorable, forever. The fact that Sam Altman thinks he needs more data than HHS in order to give people less says absolutely nothing new about the entrepreneurial class.
I suspect that forcing Facebook to let you opt out of all advertising for the price they get from selling you to advertisers would destroy Facebook within six months. "Wait - you're ruining my life for $2.50 a month? Yeah sure I'll pay you $2.50 to keep my shit private oh wait I hate this site DELETE"