At the beginning, I was interested in the theory.
After all, we already have electronic currency exchange, money that doesn't exist in actuality and so on. Coin 'mining' was a bit beyond my ape-brain though.
The blockchain theory - i.e. a unique string of numbers which can be assigned - was interesting ... until it was trumpeted to the skies that it was unregulated and unrestricted - if you had the investment and the 'wallet' you were good to go.
So no protection of your investment, unlimited - and unaccountable - transactions made my simplistic mind ask "So ... if you want to 'free' yourself of the banking industry then great. But the only folks I could see delighting in the system are unaccountable, international criminals. Pay off a cyberattack on your firm's computer? "We take Bitcoin." Want under-the-counter shady deals between governments and terrorist organisations? "Etherium? That'll do nicely."
And - to my mind the worst: Invest the (real) thousands in your life-savings or college funds in order to make (theoretical) thousands more! These big mouths on social media, showing off their sports cars, prostitutes and bundles of (real) cash, show it can be done.
I'm not bitter, nor am I enjoying
schadenfreud - I never had enough real money to invest. But, then again, if I had ... I had too much doubt over the whole thing.
And don't get me started on the absolute lunacy on Non-Fungible Tokens.