Dear ImZloyHomyak, as your name implies, you are an angry and evil rodent. I would not normally bother to reply and will not engage in any discourse going forward. However, this once I will take the time to address two of the questions you've listed, for the benefit of the rest of the community.
The original developer of Zero made a set of changes to the Zclassic codebased, that are described in detail in the original ANN. The implementation have been reviewed by a number of competent developers since. From the very start that individual announced his limited availability and no inclination to interact frequently. He does drop by bitcointalk.org occasionally and may well message people privately, but is not posting, as you can see. He has not contributed to Zero codebase since at least Sept. 2017.
Having been involved in Zero for a year now, I have been doing the codebase maintenance for perhaps half of that time and can testify that the current team is the strongest in Zero's lifetime. In terms of the range of technical skills and organizational abilities, we deliver fixes and improvements, peer review the changes, share the workload, plan and then execute a range of tasks in parallel and keep the community apprised and engaged.
Regarding QIEX, indeed it is located in Asia and is a young entrant into the space. We are not fortune tellers and cannot predict how their business develops over time. By way of example, Binance was at that stage about a year ago. Many other exchanges are still lingering, after a year or two of operations.
The team at QIEX was willing to work with Zero, to understand the coin particulars and to launch the node in order to support trading it. Jointly we overcame the timezone and language barriers and the trading is now fully in operation. Personally, I have moved 100 Zero there and have executed perhaps six transactions, on both Buy and Sell side, in order to validate the operation. For me, the system has operated without a single glitch.
Same as everyone reading this post, you have to do your own research and evaluate suitability of the size and execution of specific investments to your personal situation and skills. A prudent approach to investments is broad diversification, across various asset classes, where Crypto likely should not constitute the majority of your overall portfolio. Across Crypto, I typically suggest a long term sizable investment in top five currencies, with much smaller and actively managed investments in individual Altcoins.
Do consider diversifying into other members of the Zcash ecosystem, and also into the Ethereum coin and tokens domain. There are exciting new blockchain architectures coming online right now, such as EOS and TRON, and NEO shows promise. Good luck in your investments, and do share with the community your insights and successes.
Tearo