I'm struck by the fact that for centuries there were complex rules of etiquette established for interacting with other members of society depending on class, gender, family relationship, etc. Then during the 20th century that formal system of rules was all but abandoned. Obviously we can't simply revert to Victorian mores, but perhaps we should pay attention to the history of etiquette and re-engineer it for modern society. Pick some Schelling Points for polite behavior and publish them. There is already an Etiquette For Dummies book on amazon, but I've only read the first chapter as a free preview which contains generic advice with few details. I imagine there are more comprehensive collections available.

When I was reading about the elevatorgate flamewar I wondered if perhaps a lot of the people arguing with each other were actually arguing past the elephant in the room; society is currently structured so that it is common and considered normal to put people into social situations that they find very uncomfortable. For instance, who thinks it would be fun and not awkward to get into a 5 by 5 foot windowless room with a complete stranger, close the door, wait 30 seconds (probably without speaking or looking at each other), and then leave? And yet we have elevators everywhere. Originally there were human elevator operators which at least meant you weren't alone with a stranger in a claustrophobic box. Would open-air elevators or monitored security cameras or reintroducing human elevator operators or replacing elevators with stairs have prevented elevatorgate? Possibly.