Call us slightly obsessed. Yesterday we responded to a recent Pitchfork news piece in which +/- (Plus Minus) lists Ben’s Chili Bowl as one of their favorite hangouts whenever they are performing in D.C., with recommendations of some of our preferred local eateries. We thought even more about the subject and came up with a better idea. Who would be better at recommending pre- and post-show hangouts than local musicians? So we e-mailed a few…