Let's take that one thing everyone likes about what we do and kill it

People have all sorts of complaints about Twitter, many of them valid, but I've always liked it better than most "social media" services specifically because it does this better than any of them.

The reverse-chronology of Twitter makes it a favorite of journalists, media types, and anyone who likes to stay informed, as it keeps breaking news on top. That useful quality would be kaput, as would the fun moments where your whole timeline is cracking jokes and providing insight on a political debate as it’s being aired, or throwing shade at the Oscars, or jumping up and down over the performance of Knicks rookie Kristaps Porzingis.

Twitter's unique functionality as a real-time crystal ball one used to drop in on breaking news and events and then discuss and share that news with everyone else who happened to be looking was the one thing that made it useful.

And that's what they're killing because, why would they want to be useful to anyone?