Last I checked (which was admittedly a while ago), there are a decent number of Less Wrong users who act obnoxiously high status in real life (including some who are quite prominent). I'd love to have the egalitarian norms you describe, but I think first we'd have to convince them to stop.

This may not be trivial. I've noticed that my high status behaviors often seem pretty instinctual, and I've also noticed that I have a fair amount of mental resistance to giving up status even if I'd like to in theory (ex.: apologizing).