I have installed blocknet in my laptop months ago but I have no idea if it does have a TOR network functionality.
What might dex has to add to their platform I guess is allowing users to cash out through 3rd party for fiat, this is going to be a long shot for the DEX though.
Let me share my opinion regarding KYC. I prefer trading on exchanges which ask for mandatory KYC. I think it's for our safe and, that is the most important point, those exchanges have a chance to stay live longer. Remember that Binance asks for KYC.
Right now it's okay but when government start accessing their data, you may feel the eyes watching around you.