Posted 30 times, but most of the comments are about how many times it has been posted. Here are the on-topic threads:

2017 (just a bit): https://news.ycombinator.com/item?id=13431299

2012: https://news.ycombinator.com/item?id=4815399

2010 (not a good year): https://news.ycombinator.com/item?id=1982332

2009 (also pretty bad): https://news.ycombinator.com/item?id=687604

https://hn.algolia.com/?query=What%20Every%20Computer%20Scie...