And what do you mean trusting dodgy website? You always have to trust somebody or something. I had to trust some rando while buying EVE character back then. Today you still have to trust Metamask, the game developers, the smart contracts behind the trades(or however it works). And not only in a way that they don't want to screw you but also that they didn't make any security mistake and it's not possible to hack the whole thing(which is common right). So what's novel about that?