i wonder what's the point of using them instead of just going thru liquidity partners directly? if an instant exchanger doesn't use their own reserves and doesn't have full control over the swap, why use them?
not only do you have to deal with KYC/AML checks if their liquidity partners think your coin are "tainted", but you are also paying higher fees since they are basically just a middleman.
There are several possible reasons. For example, for those who come from jurisdictions where Binance is unavailable, exchanges like The Change make it possible for them to do so. Also, for smaller amounts, it is probably even more advantageous to swap if you take into account the relatively high withdrawal fee from traditional CEX.
As far as I have noticed, only a small percentage of instant exchangers use their funds for liquidity.