> As for using a SQL DB - it sounds to me like you do not understand what cryptocurrencies are, why they exist, and why they are designed the way that they are. There are plenty of high-quality, free explainers out there, so I won't bore you with one here.
"Do not cite the old magic at me, Witch". I am acutely acquainted with the concept of how cryptocurrencies work, which I must assume you aren't by your failure to engage in my very well suited analogy. The blockchain is a database. It's a kinda shitty one, in that there are higher performance, distributed, append-only databases, except for it's unique feature of being trust-less. Cryptocurrency builds on this technology by shoving transaction details in this database.
So, the only thing cryptocurrency has going for it over a well-sharded PostegreSQL DB is that lack of trust. If everybody has to trust one or more parties anyway, then there is no need for a blockchain.
To quickly address your other attempts to refute what I said: I'm not offended that there are fraudsters in the cryptocurrency space. I'm concerned with the fact that there are only fraudsters in the cryptocurrency space. If no one is using cryptocurrency for anything but speculation and crime, then the entire thing is a net harm to society. It's a somewhat-legal pyramid scheme (speculation) containing a multitude of illegal pyramid schemes, in addition to an assortment of other scams.
And I said you, you personally, have a vested interest in cryptocurrency continuing to exist. I'm presuming from your defense of the system that you are, like many others, engaged in the speculation on cryptocurrency. I said I get it: It is in your best interest to disagree with me. Because without those defenses, the market won't be able to attract new ~~suckers~~ sorry, "investors", and the speculation bubble will pop, leaving you holding the bag. I don't wish that upon you, but the longer a pyramid scheme runs, the more innocent people will be hurt when it inevitably collapses under its own weight.