Hacker News on 25 April 2013

• Twitter Should Shut Me Down
• Facebook buys Parse
• The next generation of Instapaper
• Ubuntu 13.04 Raring Ringtail Released
• CISPA 'dead' in Senate, privacy concerns cited
• “What part of Milner-Hindley do you not understand?”
• Why I Let My Students Cheat On Their Exam
• Speed up your sites with PageSpeed for Nginx
• Shame.css
• Soylent Month Three