Hacker News on 28 April 2011

• I don't learn anything on HN anymore, bring back the upvote count
• Ubuntu 11.04 (Natty Narwhal)
• Eating Healthily for $3 a Day
• Joel Spolsky: Lunch
• Why Instapaper Free is taking an extended vacation
• Facebook shoots first, ignores questions later; account lock-out attack works
• Genesis of requiring a "Dropbox folder," versus designated folders
• MacBook Air is enough for a work machine
• The Linux perf command rocks
• If You’re Going To Kill It, Open Source It