My theory: it's a back-handed jab at President Trump, as he's reported to be a user of Propecia for hair loss. Overtly political stories are usually flagged off the front page quickly, but this is "just" a journal article.

(Note: I'm not a Trump supporter — quite the opposite. I just don't like round-about mocking: "Oh, he can't get it up. That must be why he's such a jerk!")

My theory: an overwhelming majority of HN readers are men, many of whom have taken or considered taking finasteride.

I'm a fin user and frankly I'm surprised to see this here. It's already well known that persistent ED is a potential side. I'm guessing its here because its a new study and other HN readers are curious about the drug (or taking it).