Hacker News on 21 May 2011

• Was LinkedIn Scammed?
• System for generic, decentralized, unstoppable Internet anonymity
• news:yc (iPhone HN client) finally accepted into the App Store
• What Every C Programmer Should Know About Undefined Behavior #3/3
• JSONSelect
• Jobs on the importance of saying "no"
• WordPress Discontinues Support for Internet Explorer 6
• You're Using JSON, Why not MessagePack?
• Startup vs. Lifestyle Business (A Short Comparison from a Guy Who's Done Both)
• The Basic Laws of Human Stupidity