I have never really understood Twitter and how it is supposed to be useful. All I see when I open Twitter is a bunch of tweets and ads that confuse me. They are injected by Twitter and forced upon me.
Is Mastodon different in that regard?
Does it respect my choice and simply present the stuff I truly signed up for to follow? If so then that's already a win no matter how few users it actually has. If there are 100 actual users on there that provide some meaningful content vs 100 million users on Twitter where most posts are just about utter BS and self centered attention seeking noise then I know where I'll be found going forward. People seem desperate to gain followers on Twitter and they will do just about anything and everything for it.
The official Twitter app has always been a mess. When I used Twitter, it was always with Tweetbot or Twitterific, where one could see a proper timeline - recent tweets by people you follow. The impression I get is that Mastodon gives you that same thing (that is, "recent comments by people you follow", not the mess that Twitter's app gives).
Wwhat exactly is the benefit of being part of any of these platforms? I mean really, what do people get out of something like Twitter that actually improves their lives on a daily basis?
I'm really curious. I have asked a lot of people that question and nobody really had a convincing argument yet.
The benefit of social platforms is being exposed to information and viewpoints you wouldn't have gotten at home, and to engage in interesting discussion. And sometimes to help others. Usenet had a good run of being precisely that. Twitter started out as that, but they unfortunately followed the path of "give the service away for free and then figure out how to make money off of it", and what they figured out was tons of ads and "promoted tweets", and trying to lead you around by the nose to look at the things that might make them money, which is why the official Twitter app looks like such a crapfest when you open it.
As somebody who used one of these things [...] to connect to a VAX so I could chat at 300 Baud or 0.3kbit/s with strangers I feel like there was actually something to be gained by sharing knowledge but I seem to miss that part on any of the social platforms these days.
I started with 300 baud modems too, though in the days before Vaxes ruled the world (first learned on an HP 2000 timesharing system). Later on, I spent a bunch of time on Usenet (ran the Usenet feed for the company where I worked) - in the early days, before the Eternal September and before spam was invented, the SNR was amazing. Even on Usenet, though, there were plenty of idiots.
I have friends who were on Twitter quite early, and made a lot of good friends there (one toured the UK with her husband, staying with various friends they'd met on Twitter). There was much good discussion (and also a ton of crap). Similar to, but not the same as Usenet.
These days, I find Reddit to be kinda sorta like Usenet was - tons of discussions going on in different rooms and you can wander from one to the other. Many good discussions, also plenty of junk. The trick is avoiding the junk and finding the stuff that you want.
Mastodon is set up a bit more like Usenet was - no central authority, a whole bunch of servers that pass content back and forth. It's not one monolithic thing like Twitter was. It's what you make of it - a combination of the server you choose to get an account on, and who you choose to follow (you're not limited to the local server, you can follow basically anyone on any server). Mastodon is probably going to end up somewhat like Usenet, where you would find good discussions going on to join, or make your own, with plenty of junk around to ignore of course, but at least not controlled by the whims of one single authority (e.g. Space Karen), and not run with "extracting the most money possible from the viewers" as the strongest design principle.