For a long time, I did not get twitter either. But it seems to be the only popular platform where the academics and intellectual class want to hangout. Economists, researchers, policy wonks prefer posting on twitter over any other social platform.

Many of those people have moved to Bluesky. Which has its own issues.

It is also the only way to get my city's public transport system to reply to queries about why a bus is extremely late, when/if it is coming. I always get a nice polite reply because it's publicly available. If I call I get stonewalled with endless call center rerouting eventually leading to a dial tone