It should be noted that maybe the English speaking representatives of Xaircraft have been advised not to discuss forward plans especially on forums!
Maybe, but how would we know?
I know that you have been very accepting of the hands off, non-communicative policy of Xaircraft. For some consumers, that style just doesn't work - despite what the realities might be regarding China's government policies on internet access/interaction. I have personally watched videos that Xaircraft have made (not the ones Drew as posted), so I know that at some point they were allowed to conduct their business, including utilizing the web.
Again, I am not one of the crew clamoring for anything in particular - but that said, I personally like a sign now and again, to assure me that the company is still making progress, regardless of how fast or slow that progress may be. That is admittedly my own personal preference as a consumer. I do not claim that it is "right," or that it should dictate Xaircraft company policy.
In the past, I have utilized the email you provided above - and have at times received a response, and each time have had the email thread drift off to silence (prior to any resolution). So I have resigned to the fact that my experience with the SuperX is only going to be improved by research and the help of others here on the forums, much like most products in this industry.
While I will keep in mind what you point out, and try to wrap my head around what could possibly be more important than communication with a customer base after a sale, I still feel that just because much of this industry has developed a culture of 'interaction ends at the sale' mentality, doesn't mean that it's the correct way to conduct business. I don't know whether I can accept that "because the rest do it, it's ok for ALL of them to do it."