An interesting technical question: Since zk-SNARKs technology is relatively mature, why has it not been widely adopted in KYC Compliance scenarios?

Theoretically, this combination is perfect—users can prove their compliance with regulatory requirements (age, identity verification, etc.) while not exposing any personal privacy information. This addresses the exchanges' compliance needs and protects user privacy. It seems to be a win-win solution.

What is the crux of the issue? Is it that the technology is not mature enough? Or is it simply a problem with the incentive mechanism — that there isn't enough economic drive to push these kinds of projects? Or is it a lack of market awareness, where people have yet to realize the value of this direction?

From the practitioner's perspective, this should be a very promising direction, worthy of more teams to delve into.