Earlier quoted context omitted.
Is BlockFi a scam though? Fraud is not what they are getting fined for, and it sounds like they can continue to operate if they meet these reporting requirements, and that the company intends to do that.
Check out the interest rates on their crypto accounts: https://blockfi.com/rates/ A guaranteed 9.25% APY on crypto deposits when US dollar savings accounts at FDIC banks do 0.50% is odd. Where is the extra money coming from?
In effect, this is a junk bond they're selling - high interest, with a high chance of losing the principal. Those are semi-legitimate financial products (but see Michael Milliken). However, if you invest in junk bonds, you have to evaluate them, and you don't own just one. You own a broad portfolio of them, collateralized by different things, expecting some of them to fail and some to succeed. This is why there are junk bond funds. Some of which fail, because too many of the risks were correlated.
If someone in the DeFi sector is selling this, the funds are probably being used to finance some other crypto-related scheme. Not building a factory or an apartment building, which you could probably finance at 3-4% right now. So you're probably buying into a speculation that some crypto product goes up. You're buying with a capped upside, an uncapped downside, and no visibility into the risks.