[lelandfe]

Lots of free things require identifying yourself, like healthcare.

Those, just like this free book, are still free.

[speed_spread]

Healthcare has expectations of privacy, legally enforceable. Random insert-email-here has expectations of a scale of getting spammed to getting fucked out of your online identity.

[lelandfe]

"If I have to enter my email to get the 'free' book, then the book is not free" was the original assertion. I missed the implied footnote about privacy expectations.

[speed_spread]

You pay, personal information and lost time is the currency.