I've got a great idea for a website: Asshole Directory. It's a user-maintained online database of people who are assholes. Feel free to build it and cash in.
My wife had her lunch ruined by just such an asshole today. Sitting at the bar at B Spot, she was accosted by a righteously indignant know-it-all who expounded on subjects such as the likelihood that her medium rare hamburger contained parasites, dead baby jokes, and how computers are bad. In a perfect world, her parting remark to this miserable shit would be "by the way, what's your name? OK thanks, I'm going to submit you to the Asshole Directory."
Users of the website would upload Assholish Behavior Reports identifying the name of the offender. They would list the transgressions and, if possible, the date and location. Other users, upon meeting someone and learning their name, would surrepititously check the Asshole Directory to gauge the quality of their new acquaintance.
Also, there would be an app.
Sure, it would be possible to abuse the system, but if Wikipedia can come to some kind of stalemate over global warming, we can at least provide some information about people. Whaddyathink?