I doubt that Twitter has improved politics, but I can remember them being pretty poisonous well before that. I also found a couple of sentences in the article a

I doubt that Twitter has improved politics, but I can remember them being pretty poisonous well before that. I also found a couple of sentences in the article a little bit apart: "A majority of UK voters still do not have a Twitter account." "By 2012, the number of Brits with (more or less active) Twitter accounts had overtaken the number of people who regularly bought a newspaper." Hard times for the newspapers, I guess.