At a time when ads get distrusted and engagement is lower than ever, maybe this is the key to put advertisers back in the game.
I will, immediately, uninstall any app that shows an ad like this to me.
Here come the "shoot the rabbit and win 100000$" ads ...
(quick explanation, if an interstitial is being displayed every minute and has a 5% CTR, we can show one every 2 minutes because we have a CTR of 10%. So you can have twice as much -- or more -- ad-free experience time)