That was one I came across quite a bit, but based on conversations I've seen with people involved with the site - this is not really doable on a blockchain based site. It would only count views that occurred via the Steemit.com website, which would not be considered an accurate number, since a number of people view posts via other interfaces. If it hadn't already been ruled out by the devs, I definitely would have included it!
Thanks for taking the time to read and comment!