A mere quarter percentage point rate increase by the Federal Reserve might seem small and gradual, but for millions of consumers with credit-card debt it will be stinging. In a report this week, WalletHub analyzed data and found that U.S. consumers have been piling on credit-card debt at an alarming pace, adding $92 billion in new debt last year alone—twice the postrecession average. Lenders so far seem only too happy to extend credit, thanks to low levels of defaults and charge-offs, but the day of reckoning is coming, warns WalletHub. “Only four times in the past 30 years have we spent so much in a year. And in each of those prior cases, the charge-off rate—currently hovering near historic lows—rose the following year,” said WalletHub. via