Seems that you are a troll...
Your points are also no valid at all. Of course at the beginning everyone is grinding a lot until it takes off, now it has enough recognition to get people asking for interviews. Of course when a community is new the founders are more active until it takes off.
Do you really think IH has "taken off"? Certainly not and I would argue it's dying. I bet you the traffic is lower post acquisition. The only post that made it to HN front page is the Scotts cheap flights one. So your only point is that the community has taken off and so the founder is less active? This is how communities and startups die! He should be in acceleration mode, not peace out mode. You call me a troll and make no meaningful points. Are you sure I'm the troll??