Foone has asked repeatedly that HN not accept links to their threads. They've taken to deleting tweet threads that make it here.

so many dark patterns

"click here to download PDF" -> "log in to download PDF" -> [ unbelievable, privacy-eviscerating Twitter permissions, email ] --email--> You're almost there, click the emailed link to download the PDF! --click link--> you must go premium to download the PDF!

And then no less than two additional "Your PDF is ready!" emails which also redirect to the "go premium" page.