Hacker News on 29 June 2017

• TDD did not live up to expectations
• Milestone: 100M Certificates Issued
• The .feedback scam
• Thoughts on Insurance
• Delivering Billions of Messages Exactly Once
• Stupidly Simple DDoS Protocol (SSDP) Generates 100 Gbps DDoS
• Judges refuse to order fix for court software that put people in jail by mistake
• Ask HN: A good primer on cryptocurrencies?
• EFF's Letter to Zillow on Behalf of McMansion Hell [pdf]
• Pattern-defeating quicksort