Never tweeted myself either, but I think it's popular because famous people mostly have official twitter accounts and you can directly interact with the them; unlike facebook where nearly all of the celebrity's pages are fake.
I probably lied a bit there, I have tweeted to a famous or semi famous actor once and they replied, but I still don't get the layout of the site, even younger people have this problem too. I think I can log in with a facebook account and I don't use that sh*t either lmao. I'll log in to twitter using my facebook and subscribe to the official... I'm already following it apparently
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