Earlier quoted context omitted.
DeFi exchanges operate algorithmically with published smartcontracts, so they can't be deliberately manipulated like that[1] -- can you link the example of the DeFi where USDT traded at $1000? Or were you just equivocating between DeFi and centralized exchanges in response to a comment that specifically suggested DeFi? [1] Which is not to say they can't be manipulated at all, but you'd have to go after the entire mar…
OP is obviously talking about CEX since it’s not possible for a DEX to have a USD market (like the above mentioned USDT/USD). As for DEXs being manipulated, absolutely not sure why you believe that’s the case? This has nothing to do with DEXs and everything to do with margin (which is coming to DEXs). DEXs and AMMs make it much more expensive to provide liquidity in terms of capital efficiency versus CEXs, and thus m…
Certainly -- I agree OP (arcticbull) was replying to a comment about DeFI by explaining the dangers of a centralized exchange! That makes it a confused, unhelpful response, not one that "obviously" meant something coherent if you squint hard enough and practice sufficiently strained exegesis.
>As for DEXs being manipulated, absolutely not sure why you believe that’s the case? This has nothing to do with DEXs and everything to do with margin (which are coming to DEXs).
Margin has "come to" DEX the moment smartcontracts offer collateralized DeFi lending, which they have, so I'm not sure what you mean here.
>DEXs and AMMs make it much more expensive to provide liquidity in terms of capital efficiency versus CEXs, and thus more vulnerable to manipulation.
The reason (I'm claiming) centralized exchanges are more vulnerable is that
a) they own the platform and are the word of god on it -- whence the stories of people getting margin called at flash-crash prices that don't exist on other platforms. If they say prices are trading at some level, you just have to deal with it. That's not possible when you have to trade how the algorithm says.
b) If someone "stupidly" buys in one direction on a DEX, "for manipulation", they've vulnerable to the entire universe of arbitrageurs who can exploit the resultant price differences. Inter-[centralized] exchange arbitrage is much harder.
I brought up the point simply to emphasize that, to the extent that there's manipulation, it does not look like the manipulation you'd see on CEX, which was how OP was basing his argument.
Furthermore, even the issue of more expensive liquidity from transaction fees wouldn't be true for the far-cheaper L2 sidechains.
(Btw, you might want to use the terms in their unabbreviated forms at least once just to make it easy on people who aren't up to speed.)