I had the same thought. So I did a bit of digging into it, turns out they are just rehashing the same tweet again and again. Just with different wording. When a

I had the same thought. So I did a bit of digging into it, turns out they are just rehashing the same tweet again and again. Just with different wording. When a new popular tweet pops up, everyone copies each other. It's an echo chamber down there. As an experiment, you can try to choose a random popular tweet from your timeline. Look into their profile. And I bet there's a high chance you can find the same or very similar tweet a few months or year prior