Not arguing that, but generating smurfs on HN is pretty trivial compared to a few social media platforms I can think of. Luckily there isn't much money to be made from doing it here, unless you want to play the long game and try and push an investment agenda, but again, that isn't really hot-take territory and more like creating many false identities over a long time.
Still, HN could make a couple of changes to email verification and make smurfing much less trivial. I think it is good they don't