Chronicle Reader Rep. Dick Rogers writes that one of the biggest complaints he gets from readers is that the paper doesn’t do a good enough job following up on major stories. Because of such complaints, Rogers says Managing Editor Robert Rosenthal is considering a regular “update” feature that would reunite readers with stories. Rogers suggests that any story involving the word “crackdown” receive a follow up — like when police say they’re cracking down on red-light running, speeding or drugs. What happens after the crackdown is announced? Does anything change? Rogers invited readers to send their list of stories that need follow-ups to the Chronicle with the subject line “Whatever happened to?”