He can respond here atleast something because he is logging in often but never responded to anything that is why the suspicion begins. I hope he will recover fast if he has any health issues but making it transparent may hold the loss of trust on their loyalty customers and if he still think his private life is more important than its his own choice.
That's also what I'm thinking but we don't know the reason and he has already said a few words that would give us an idea on what he's dealing with.
I also wish him to recover as soon as possible, but that he is feeling better and that everything will soon return to normal he wrote two months ago. From what can be seen on his profile, he is active on Bitcointalk from time to time, so if he is serious about his business, he should write at least a small update about situation.
You guys are right but we have no idea what could be the reason why he's not doing that. Nevertheless, everyone has just to wait for him on this thread again and if there are no complaints yet, then things are going smoothly.