Yes, it does seem somewhat confusing and discouraging that it's gotten to this point... However, I do believe DV took on so many of these projects because he enjoyed them and wanted to be helpful. Then he was offered full-time employment, and because he's so super-focused no matter what he's doing, I think he's ended up giving all his attention and energy to that work, and it's been consuming his physical and mental resources.
I don't think the delays are personal at all, nor that he's deliberately neglected anyone. And I certainly don't think he's been dishonest. I think he's just overwhelmed.
I can't speak for him, of course. I feel presumptuous just voicing these theories. It would be great if he'd communicate about it better here. I think he'd find we were more understanding than he might expect, once we understood what he was dealing with.