Dev fee proposal - Thesis

Hm, I have ran across this sentence on a trading idea on tradingview. It has been bugging me ever since that I dont understand what it means. Maybe you can help me understand it as I suspect to be connected to your work.

“Zcash could be in demand on all decentralized exchanges to hide “buying and selling power”. Actually there are too many use-cases for it and I think that privacy coins will be in great demand in coming months, years.”

Is the claim "Zcash could be in demand on all decentralized exchanges to hide “buying and selling power”. first of all true. If it is true could you please try and explain it to me? I am very interested in interesting use cases for ZEC