Meldryn

Collecting? No. Using Stripe to charge $1 to gate brigading. Unless you think everyone using payment processors on HN are also "collecting"?

You can easily vet the payment flow in the browser console, which is taken directly from the Stripe docs. Also, since there's no data collection, period, there's nothing to unsubscribe.

Please take some time to actually either read the privacy link, or if you are really concerned, inspect what the browser does with your information as Stripe's library processes it with their servers for a one time transaction.

Reading the API docs, it seems that every user needs their own URI to be uniquely identified. I wonder how this will work with the average user, just IP address? What about users with shared internet?

How does this compare with Diaspora?

You need to put in some form of CTA for purchase of said books.

I kept looking for the Amazon link to check the pricing and other relevant metadata.