If you open the discussion section of any article on HN that is behind a paywall you'll find a link that bypasses the paywall and a discussion about how paywalled content shouldn't even be allowed on HN.
So even though they created something of value (otherwise it wouldn't be on the front page) but most people still won't pay for the content.
Why doesn't that seem reasonable? On Twitch.tv people stream for free and ask for donations or subscriptions. Most people just watch, and the few people that donate or subscribe so vastly overfund the stream that they can afford to never run ads.
Patreon works the same way. You make money when you produce content that people want to pay for even if they don't have to. If you can't do that, ads are a fine plan B, but you have to go into that knowing that many people will be ad blocking (and even more if you're producing any kind of technical content).
I don't think that's true. People would write us letters and emails saying how much they loved it. But if you asked them if they'd pay (and they were being honest), they'd say no.
So even though they created something of value (otherwise it wouldn't be on the front page) but most people still won't pay for the content.