Also, I don't think that the main proposition of cryptocurrency is that you don't need a centralized exchange. If you want to exchange fiat for cryptocurrency via the credit card or bank transfer, you need a trusted peer who can accept those forms of payment- whether that's a business or an individual. The centralization and insecurity of exchanges is due to their weakest link- the centralization and insecurity of the fiat system.
Yeah I agree. That was kind of my point also -- the "decentralized" block-chain is pretty reliant on centralized exchanges.
Real jobs is an interesting one. To the individuals yes they are real. To the economy there is no value creation and therefore the work done by these companies is just ultimately burning investor dollars & the planet in a lose:lose situation (as with everything crypto related).
Also, I don't think that the main proposition of cryptocurrency is that you don't need a centralized exchange. If you want to exchange fiat for cryptocurrency via the credit card or bank transfer, you need a trusted peer who can accept those forms of payment- whether that's a business or an individual. The centralization and insecurity of exchanges is due to their weakest link- the centralization and insecurity of the fiat system.