There is, or at least was yesterday, a problem with 'Ask HN' submissions. Story (question) submission worked fine but users got an error message, so they kept s

There is, or at least was yesterday, a problem with 'Ask HN' submissions. Story (question) submission worked fine but users got an error message, so they kept submitting the same again. The example you list seems new indeed. Usually there's at least a difference in URL. Or the older story is a day old (stories that didn't gain traction get another chance). This is something for hn@ycombinator.com to check on.