After last year’s election, Facebook came in for a drubbing for its role in propagating misinformation — or “fake news,” as we called it back then, before the term became a catchall designation for any news you don’t like. The criticism was well placed: Facebook is the world’s most popular social network, and millions of people look to it daily for news.

But the focus on Facebook let another social network off the hook. I speak of my daily addiction, Twitter.

Though the 140-character network favored by President Trump is far smaller than Facebook, it is used heavily by people in media and thus exerts perhaps an even greater sway on the news business.

That’s an issue because Twitter is making the news dumber. The service is insidery and clubby. It exacerbates groupthink. It prizes pundit-ready quips over substantive debate, and it tends to elevate the silly over the serious — for several sleepless hours this week it was captivated by “covfefe,” which was essentially a brouhaha over a typo.