It takes a lot of money to become a board member of Twitter, but not a lot else apparently. With a large stock purchase, an abuser of the service — Elon Musk, the CEO of Tesla and the world’s richest man — has now essentially bought himself a warm welcome from Twitter CEO Parag Agrawal. For those of us who care about equity and accountability, Musk’s appointment to such a prominent role at a platform that serves hundreds of millions of users daily is highly disconcerting — a slap in the face, even. Musk has been open about his preference...