In a bit of Huffington Post SEO, I just learned that the nominal date in the URL like ...com/2016/02/22/cuba-lung-cancer-vaccine_n_7267518.html is meaningless.

In a bit of Huffington Post SEO, I just learned that the nominal date in the URL like ...com/2016/02/22/cuba-lung-cancer-vaccine_n_7267518.html is meaningless. This is a repost of https://news.ycombinator.com/item?id=9547302 https://news.ycombinator.com/item?id=9547302 from some months back (and three comments). Only that posting linked to ...com/2015/05/14/cuba-lung-cancer-vaccine_n_7267518.html , which has the same supposed timestamp inside the article, 05/14/2015 . In fact, I'll rewrite the URL so it appears to be from Christmas 1995; http://www.huffingtonpost.com/1995/12/25/cuba-lung-cancer-vaccine_n_7267518.html http://www.huffingtonpost.com/1995/12/25/cuba-lung-cancer-va... . It points to the same thing. Is this common practice these days?