Why Bother? : The case for ZSAs beyond the hype
If ZSAs were solely about chasing the current “DeFi” cycle or launching random meme tokens, I would agree with the scepticism. But viewing them only through that lens misses a structural failure in our current privacy model.
If we are honest with ourselves, the thought of using Zcash in the real world currently feels like wearing a bulletproof vest to a knife fight, only to be asked to take it off at the door. The issue isn’t just about moving money; it’s about the Context of Commerce.
What Leaks? : The “Data Halo” trap
Imagine you are making a transaction. Your OpSec is tight. You scan the QR code, knowing the value transfer is occurring in a cryptographic black hole. You feel that fleeting sense of triumph—you’re beating the surveillance economy. 
And then, the cashier looks up and asks:
“Can I just get your email address for the receipt?” or “Please enter your phone number to collect your points.”
In that split second, the architecture of your privacy collapses.
This is the Data Halo. It is the receipt, the warranty, the loyalty point, the ticket, and the gate code. Currently, Zcash protects the asset (the money), but the context (who you are and what you bought) is stripped naked at the point of sale.
The transaction is dark, but the interaction is lit up like a Christmas tree. 
The Fix? : Bridging the Metadata Gap
As long as this gap exists, we are forced to choose between being a ghost (using ZEC but having no perks/receipts) and being a participant (doxing ourselves).
I believe ZSAs can provide some of the missing cryptographic primitives needed to carry receipts, tickets, and reputation within the shielded pool.
This leads us to the ultimate goal: Verification Without Revelation.
Why Now? : The cost of waiting
Sure, we can leave problems on the table. All products do; prioritisation is necessary. There are times when deferring features is a good idea and times when it is not.
I fear this is a time when it is not.