Cohost and Tumblr and bluesky and marsetodon, even if you're in like, 3 of them, you can generally keep getting things to people who wanna see your things.
One of the biggest complaints about social media versus old-style forums for years has been about the corporate consolidation of the web into like... three websites. Just shove all the users into the same pot and expect them to get along.
It doesn't work, and it'll never work. Having separate communities for separate things that people are free to join, leave, or ignore, is a Good Thing, Actually.
On the old forum model, the people who got so incensed upon discovering a website full of people that they don't like that they registered a whole new forum account just to yell at them were nearly universally seen as antisocial weirdos. It wasn't difficult, but you had to go out of your way to be the kind of person who barged into someone else's conversation to tell them their hobby sucks, and you'd almost always get booted out immediately upon doing so.
Now, on the likes of twitter and facebook, all the users of all stripes already have an account. And those people who feel emboldened to vomit their opinions into the ears of complete strangers don't have to do anything to barge into people's mentions. It's the public square, right down to That One Asshole sitting at the cafe table behind yours who can't help but turn around and butt into the conversation you were having with your friends uninvited, the annoying teenagers who think it's funny to yell insults at strangers, and the weird snooty jerks who just have to tell you they "don't approve of your lifestyle".
Maybe it was a little harder to find the groups you like back in the day. But it was a lot harder to find the groups you dislike. And if you found a group you dislike and decided to stick around to hassle them anyway? It was a lot easier for them to show you the door.
