Alex Pall, one half of chart-topping, mindless-festival-pop DJ duo the Chainsmokers, apparently told the U.K.’s Metro newspaper that he struggled with ADHD as a child. This future Music Choice Trivia answer wasn’t even news—you can’t find it on Metro‘s website—but it was somehow aggregated by LinkedIn, a traffic-thirsty professional network for thirsty professionals. It’s likely that no one took even took…