I've noticed plenty of folks here from other countries.
If you really understood me, then you should already know the basics of premining.
Zcash is not about the trust, it's about the premine -- to me. And the lack of assured privacy.
Premining is akin to centralization at that equals risk. Dump risk. Bye-Bye Risk. Diluted Zcash with good intentions, risk.
Invest away and good luck.
As I understand it, even if you mask your Zcash sends, the receiver can unmask you, if say, Uncle Sammy wants to know if you are a terrorist.
And in the U.S. every Granny is a potential terrorist these days.
what % of ZEC was premined and what is the the distribution problem, particular to ZEC? Why mention it, unless you are simply parroting someone else and don't have a clue about the premine?
The receiver cannot unmask the ZEC sender, but can make unmasking easier - not that it is. The transactional amount is not hidden, and neither is the sender IP address or node transactional data.
Those particular problems make ZEC unmask-able, but it is still very difficult to do. There is no direct coin history for each coin, but the protocol needs work to be as unlinkable / untraceable as XMR