Now there is the problem. The facts speak for themselves- lots of talk nothing delivered. What has been going on behind the scenes- who knows?
Your assumption/interpetation of John's investment is highly questionable. Does anyone really believe that John has been beavering away night and day at this? I can see no firm evidence that he is doing anything other than messing around for his own amusement and developing products to sell on the ordinary market. Then he appears on the forum saying- "look what i did for you guys".
Even if we knew the underlying facts I suspect we would disagree on their interpretation. No doubt John has spent a lot of time in a room with a lot of electronic equipment thinking about different ways of making a dac. During that period he has produced some dacs. But not ours.
No doubt for much of that period he spent more time than is healthy on a hifi forum. (err hello)
Honest guy, not honest guy- these are not necessarily the important categories.