as an obsessive observer of his over the past decade, I've been concerned... It could be a product of his increased concern over public media coverage in general (he keeps his really interesting views just to himself, as Nick Cammarata mentions on Twitter), and this trend may have only intensified recently, as he has been strangely quiet
The IPO has likely been taking up a lot of time. Also, there is a blackout period before most IPOs where those in the company are not allowed to talk about the company or 'sell' it. The SEC guidelines are pretty strict and jeopardizing XYZ% of the IPO can result in millions on the gambling table.
