Medyo interesting ito, kasi if it's available to the public then makikita ang internal records? So wala ng privacy na mangyayari?
To a degree, I guess their users' records are private unless, of course, just like you said, if gobyerno na ang hihingi ng records nila, they might be forced to comply and give it.
Or these exchanges automatically delete logs and records upon successful trade/swaps - then again, how can we be sure they are doing any of that?

ano sa tingin niyo yung mas mangingibabaw kung gusto niyo talaga ng total anonymity?
Maybe a mix of all of them? Buy BTC from P2P (preferably DEX P2P), then send mo ito sa Mixer - they'll mix it with the BTC they have; you claim your BTC, then find an anonymous exchange to convert it to Monero.
TBH, hindi ako gumagamit ng ganitong method or even trying to hide my BTC accumulations and purchases; so IDK maybe may iba pang easy or practical way to be totally anonymous with your crypto.

hindi talaga gaya ng ibang mixer na binibigyan ka ng bagong coins galing sa big exchanges o sa mining. Tulad na lang ng Chip mixer nuon na bagong coins talaga ang binibigay no traces talaga yun.
I guess we will never really know saan manggagaling yung coins nila. The only ones who could verify it ay yung mismong owner ng platform. Ika nga nila, "trust me, bro" ang magiging sistema.