It was the submitter's title, not a mod edit, if that matters. The submitter did a good job, because the rest of the title ("marks milestone in computing history") is certainly linkbait and arguably misleading. Having it there would likely have made this thread a lower-quality controversy than it currently is. HN threads are surprisingly sensitive to initial conditions.

Edit: Oh, and considering how many fluff press articles are showing up about this [1], the submitter also showed exemplary taste in source selection. Yay, stevejalim!

1. https://hn.algolia.com/?q=turing+test#!/story/sort_by_date/0...