Hacker News on 1 February 2014

• Mystery signal from a helicopter
• How in-app purchases have destroyed the game industry
• Microsoft please clean your store of junk
• Big changes to Erlang
• Ask HN: Who is hiring? (February 2014)
• We Are Giving Ourselves Cancer
• School ditches rules and loses bullies
• Honest Android Games
• Bitcoins the hard way: Using the raw Bitcoin protocol
• The Only Interview Question That Matters