Better real time engagement. Think of it like your own personal news ticker or curated radio station with updates. I used it to get updates from sporting events when I didn't necessarily have access to a radio/tv and couldn't watch/ listen to a game, etc. because I was indisposed, at a function, movie, etc.I had a whole host of journalists, personalities, and people that would basically/ practically give me play by play and keep me informed of what was going on. It was actually truly great. Twitter isn't even close to what it once was.
Edit: wanted to add that you could think of Facebook as the modern rolodex at the time, still actually, while Twitter is/was more suitable for more real time engagement. Reddit sort of became the substitute for that up until they disastrously decided to shut down 3rd party apps. Now the site/subreddits are getting garbage content and it's a ghost town. Most subreddits I was on are barely getting anything orany posts anymore. Lemmy is definitely filling the void. I mean, at least it has usable apps.
They've gone and Dugg themselves a whole that will never come out of while Musk is there.