""I'm 20 years old, the CEO/cofounder of SomeTwitterBootstrapWidgetOnRailsInHerokuIBangedOutOverAWeekend.com" ... "let me share with you the wisdom of my vast accumulated life's experience and insight, from my struggles in an elite private US high school"

Your comment really made me laugh and I thought how I wish my wife knew about HN so I could share it with her.

"these "amazing insights" are chosen tongue-in-cheek, just to have an excuse to blog something"

Maybe some are. But I think the social proof exists where someone sees that items like this are well received on HN and they go to lemm-mimick the same behavior to feel special.