Hacker News on 23 March 2015

• Pinterest lets employees exercise options 7 years after leaving
• Images that fool computer vision raise security concerns
• Stripe Connect v2
• Ask HN: Does anyone else value the comments more than the link?
• Free Non-Commercial Renderman
• Early Posts From Tech Founders Who Changed The World
• Primer – CSS toolkit and guidelines that power GitHub
• Show HN: Rabbits – Send an email to get any grunt-work programming job completed
• pg_rewind in PostgreSQL 9.5
• Hacker's guide to Neural Networks