The difference between a pure ad and a cool showing is that the first one shows the entire face of the woman to trigger psychological buying - a technique that works on both sexes. A cool bragging would've shown only the ear, no pretty face.
Hence, it's a shameless ad, that should not be atop of HN.
And you can't discriminate against pretty faces :) Just because our model is good looking doesn't translate to negative points on the the coolness of our product. Not that I am saying it is cool. That's upto the folks on HN to decide. But in sharing something I made, and that I am enthusiastic about, I don't owe anyone some arbitrary level of coolness.
So for you personally I only have congratulations, you managed to game HN. And the amount of downvotes I received for calling it an ad it shows they still continue to chew on your bait.