You could say the same about most Internet activity: busy people don't have time to post on HN, or make stupid LinkedIn posts. Yet here we all are, reading and writing despite our busy startup lives.

Oh, my bad, I should've phrased it differently. I didn't mean that they're necessarily busy and have to handle a lot of matters, but rather that a lot of things are happening around them. It surely can be stressful even if one's not actively involved in something, but if they're merely witnessing something happening.