Bonus offers, stacking windows and payout threshold changes at Ibotta, Fetch, Upside, Shopkick, Receipt Hog, Checkout 51 and the store apps, gas cashback rate spikes, referral and welcome bonus changes, point devaluations and redemption changes, account closure and fraud enforcement waves, data and privacy policy changes, class actions and settlements and the weekly offers worth stacking on staples, with the app or offer first and the real dollar value in the title.