A quarter million users and that's not even with all the different instances.
Very cool. Just remember folks, don't forget to diversify and decentralize! These other instances have some interesting posts and conversations, and by spreading out we make sure no single instance or community can break the fediverse.
A lot of them also restrict content. There are disadvantages to joining smaller instances, depending on the philosophy of the person who runs the instance. There's even an instance that does not allow communities to be created on its own instance. It will accept applications from people who wish to create one, but they mostly reject applications on their own whim. I think the future of Lemmy as a Reddit alternative will rely on larger, freer instances to be supported well so they have room for growth and change. I have my personal preferences. I don't want content from exploding-heads, but I also want to see the content I want to see. Some smaller instances are restricting that content, almost seeming to be like cults in the making. There are small instances from which it is impossible to find and subscribe to communities from lemmy.world. You have to search for them on a larger instance, then copy and paste in the address bar in your browser. I imagine on a dedicated phone app that would not be possible. So, you can advocate for "spreading out" all you want. In the end, if the goal is to have a strong alternative to Reddit, spreading out is kind of pointless for a lot of users.
I think there are some good reasons for servers restricting content. programming.dev is one of the biggest examples of this by not allowing users to create communities, however if you wish to moderate a community or ask for someone else to moderate one, and it falls within the interests of the server, there is a good chance it will be created. It might be obvious with that server, but it is almost all content relating to software development. It doesn't really make sense to create a community of cooking recipes there, especially since several others exist within other servers. The biggest advantage to this in my opinion is that there aren't dozens of empty communities. If you look at some of the bigger servers that allow users to create their own, there are tons of communities with 0 posts. I think its good that some servers out there allow users to create any community, but it makes sense for many servers to not.