How to Use Your Unsubscribe Page to Win Back Subscribers

Thanks Yaro! Great piece.

As I was reading it, I started thinking of another idea that might be helpful for indie makers in particular who are building out tons of quick landing pages to test out an idea and track CTR and conversion rate.

What about adding a pre-sales button in which potential users would pledge a $ value to be an early user in case the product was actually developed, and which will be refunded if not (a la Kickstarter)?

What are your thoughts?