I don’t know how we got to a point where chatting and sharing with friends means having to pick through adverts, and agreeing to being tracked and marketed at, and risk being exposed to, or abused by, terrible people. Our conversations and holiday snaps have become darkly marketed events. You could say this is a fair exchange but it feels wrong to me. The things being exchanged are too different, a kind of category error. It’s a wonky kind of barter in which I feel powerless and used. It’s not why I came here, to the internet.