I doubt if we actually did deviate from satoshi's original idea, even if literally we aren't going by his exact words or proposals/postulations..
It's evident why cryptocurrency users the world over shun trading directly with individuals,and you can't really blame them, because as the birth of this genius technology was announced,so also the scammers stepped up their game, in a bid to enrich themselves and impoverish their victims
The system was created to be pseudo--anonymous,with very little details of tracking anyone
I think it really hasn't been our fault,but I blame fraudulent individuals out there who make trust a word that doesn't exist in this system
Exchanges make it a bit safer for users to trade,with at least a reduced risk involved
Users most times also trade on decentralized exchanges,which is more or less direct business
I for one wouldn't overlook the risk involved in direct trade, in order to fulfil what's written in the whitepaper
"What is needed is an electronic payment system based on cryptographic proof instead of trust, allowing any two willing parties to transact directly with each other without the need for a trusted third party."
Never trade directly with an individual without a third party
Trusted escrow service..
That's the sad truth now