Jem Aswad Senior Music EditorOver the weekend, indie-rock fans of a certain age were surprised to learn that “Bean Dad” — a man who posted a long Twitter thread about refusing to teach his hungry, crying daughter how to operate a can opener — was John Roderick, frontman of the veteran Seattle band the Long Winters and currently a podcaster. Many were even more disturbed to learn that Roderick’s Twitter history included racist, homophobic and anti-Semitic language.