$ZEC's current biggest challenge is getting stuck in a 'no clear answer' dilemma:
1) It's unclear whether its Orchard privacy pool has truly suffered a 'hack' over the past four years, and even if it did, there's no proof that this was a meticulously crafted 'infinite mint' backdoor by the team;
2) Assuming it was actually 'attacked', it's unclear how the hacker managed to double-spend ZEC to extract real value from the Orchard pool, because if they could bypass the Turnstile's total supply verification, it means they could only quietly 'consume' a bit at a time, using fake ZEC to slowly purchase real services like merchants, VPNs, gift cards, etc. This kind of hidden damage isn't as obvious as a massive coin theft, but it effectively overdraws the value that all ZEC holders should rightfully enjoy;
3) Even if Shielded Labs is about to roll out a new upgrade that incorporates a new privacy pool and enhanced Turnstile accounting and mathematical proofs, it can only prove that the effective supply of the current Orchard pool is less than the total amount that has entered the pool. It still doesn't clarify whether there will be potential vulnerabilities discovered in the future, because the contradiction between verifiable supply and privacy inherently exists. This will directly erode the trust built over years in the Zcash privacy service market; 'privacy' isn't an issue, but 'verifiable supply' has become ZEC's deadlock.
1) It's unclear whether its Orchard privacy pool has truly suffered a 'hack' over the past four years, and even if it did, there's no proof that this was a meticulously crafted 'infinite mint' backdoor by the team;
2) Assuming it was actually 'attacked', it's unclear how the hacker managed to double-spend ZEC to extract real value from the Orchard pool, because if they could bypass the Turnstile's total supply verification, it means they could only quietly 'consume' a bit at a time, using fake ZEC to slowly purchase real services like merchants, VPNs, gift cards, etc. This kind of hidden damage isn't as obvious as a massive coin theft, but it effectively overdraws the value that all ZEC holders should rightfully enjoy;
3) Even if Shielded Labs is about to roll out a new upgrade that incorporates a new privacy pool and enhanced Turnstile accounting and mathematical proofs, it can only prove that the effective supply of the current Orchard pool is less than the total amount that has entered the pool. It still doesn't clarify whether there will be potential vulnerabilities discovered in the future, because the contradiction between verifiable supply and privacy inherently exists. This will directly erode the trust built over years in the Zcash privacy service market; 'privacy' isn't an issue, but 'verifiable supply' has become ZEC's deadlock.