Earliest post:

* https://news.ycombinator.com/item?id=45370021

Other duplicates:

* https://news.ycombinator.com/item?id=45375782

* https://news.ycombinator.com/item?id=45372608

* https://news.ycombinator.com/item?id=45372319

* https://news.ycombinator.com/item?id=45370260

And yes, the plus sign was omitted in all of them. (-: