A few days later, I was in Washington DC. I rented these Citi Bikes that are called different there. The terms say:"After you purchased your 24 hour code, you get the bike for 30 minutes for free. If you want to keep bicycling, there's a small added cost of 4$ per 30 minutes for extended bike rental." - "That sounds fair", I thought.
This slide deck would be so much better, if it was called:"100 ways to improve your UI" instead of "100 Growth Hacks". Because they aren't. Only one out of ten is. And it's not even clever. Everybody does it. All others are marginal improvements to the UI and most of them don't even have data that support their effectiveness on growth / increased signups / decreased churn. They are interesting, but they aren't what they're advertised as. So I feel cheated although the "product" is good.