Nobody here asks for engagement in Internet debates. Frankly, the time invested in commenting this topic, could have been used better for writing a monthly 'State of development' entry, giving a preview of what to expect for the next four weeks, what topics are being worked on, which topics you will start looking into, and where there is currently no clear solution in sight. Be honest and talk about things in sight, and nobody will beat you for it. Make it a sticky in the 'Announcements' section, for everyone to read, and then let the discussion go as it goes - I doubt that this is harder than to micromanage all the rumors caused by the current insecurity.
When you refer to the 'Missing Feature' List, there are a couple of problems with it:
1) It is not adhered to. Adding the Russian language support for instance is at priority number 5 - and here it is now, probably creating new bugs in need of fixing, delaying priority 1-4 topics further. If you have one priority list, and it is not adhered to - why should I as a customer trust it?
I want to stress out, that it is totally normal that these kind of lists change, depending on the feedback that pops up, how easy one feature is to implement, urgent problems, etc. But this is, why you should not make such a uncommented, numbered lists in the first place, but rather talk about the things you know and which you are currently working on. You can mention the missing features (to give an idea of the 'finished' product you strive for), but I think it should be simply a list of bullet points without numbers and a couple of caveats attached to it. This should not be your primary tool for communication.
2) It is overpromising: By setting the timeframe to 'somewhere 2017' you promise features, you have not even started working on - you have no idea how complicated these will turn out to be. Looking at this list and the current speed of development, I feel that the bottom priorities are already quite ambitious for 2017. Remember when you#v made a similar statement back in 2016 (Offline Mode, all Cards on time, etc.)? These are the promises that come back to haunt you. Compare this to a statement like, i.e. that you expect to open the ports at the end of January, solving the Proxy problem. Here you can speak with confidence and caution, and still surprise positively, if the feature comes earlier. And if its really more complicated and it gets delayed, in the monthly update post you can give reasons and no sane person will challenge it.
3) It is underpromising: As mentioned before: Saying 'At some very distant day in the future that we cannot name, we will achieve all the things we like', is nothing to evoke trust or expectations for a 'positive' surprise. You are setting yourself a bar so low, that (in theory) you cannot fail, but you will not get applause (and trust) for it either. And worse, due to problem 2), odds are goods, that you will miss even this 'low' bar at least partially, opening the flood gates for derision and flaming.
4) It is vague : As pointed out by Ravi, it is extremely vague and can mean a lot of things. This is a logical result of reaching out way to far into the future, as mentioned above. I am pretty sure, your roadmap for the next 4 weeks would look far more accurate & detailed.
Having worked with online communities before, I can say that you have an extremely polite and constructive community at your hands. I think with a a little bit of time investment for 'macro' communication (Announcements, Dev Diary, etc), you can save yourself quite some time of 'micro' communication (Forum Discussions, Discord, PMs, etc.), as the community will help to adress these, if they know your trail of thought.
From my work experience, what works best with Internet communities is
a) Honesty & communication on all the things you DO know (including, most importantly, acknowledgment of things you do not know)
b) Regularity - If you know, there will be a blog post every first Thursday of the month, the pressure for a feedback on any given topic will decrease
c) ONE clear channel of communication, accessible for all users (i.e. a sticky post in the Announcement section)