1. Don't understand what it is. New way of scamming?
2. Not your keys not your coins
3. Don't understand what it is. New way of scamming?
You leave in 2017? Market changed a lot in last 3 years and if you don't know whats the name on BIGGEST DEX, what is liquidity pool, what's the difference between 2014 CEX (scammy shit) and 2021 good and reputable CEX (CEX'es are now being listed on nasdaq) than your table with "tech 1-10 scale" is useless.