the goal is to wipe "regulators" and their conflicts of interests and others scams and the costs they generate, by passing them completely once the ruling platforms emerge.
The only shitty issue, is the money laundering and all those issues about terrorism... If you DEX who knows who is on the other side of the trade... and then they come... "you financed al-cia-da and end up in indefinite detention somewhere, maybe even in black site for the rest of your lives, while those having put you there will collect their checks and fuck their "wives".
Free !!!
I tried a lot of DEX, I think that a lot try to embedded their own cryptochain in the process which I find cumbersome, others need a website (lol to decentralized) and some are quite expansive (bisq).