They Each Own 50 Credit Cards. Should You? (Published 2025)
Profiles of "churners," people who open dozens of credit cards to collect sign-up bonuses, with several claiming $15,000 to $40,000+ in gains, plus manufactured-spending tricks like gift cards and gold bars, buying groups, and 0% intro-rate borrowing. Former Discover CEO Roger Hochschild explains why issuers struggle to stop it: they budget on the assumption that customers will keep using the card and pay interest and swipe fees, so those who do the bare minimum cost them money, and public offers can't legally be targeted away from particular people. It also notes the risks (it's only for those with firm finances) and a Fed study estimating that savvy rewards users gain $15 billion a year at the expense of those who carry balances.