Because the majority of people don’t actually know or care about what the fediverse is. They just wanted to jump ship and BlueSky was the convenient one for them.
Because Mastodon and the Fediverse is confusing, especially at first. I'm a techy person. I work in IT. But when I started to looking at the Fediverse back in 2023, it was confusing. Where do I go to sign-up? There are different services on the Fediverse? Which do I get access to? Do I need an account for each service? How do I know that this instance for this service (Pixelfed, Lemmy, Masto, etc.) is a decent one? What happens if my friends/people I follow are on a different server? Will we be able to interact? What does it even mean to federate/defederate?
These are all the questions I asked as I was looking to all this. And it wasn't a quick 15min look. No, I spent a few hours looking into it.
But the average person isn't going to ask all this and research this. They just want a place to follow famous people, post about their life, and post pictures of their food and pets. When these people (myself included) signed up for Twitter, Facebook, Google+, Instagram, YouTube, TikTok, Snapchat, etc, they just went to the appropriate site and signed-up.
It's not nearly as simple for Mastodon. Sure, Mastodon.social acts as the flagship and "gateway," but there are still the other questions that probably need some answers. Otherwise, a user may have a bad experience ("Oh, my friends aren't on this Mastodon server thing? And we're not federated? I gotta make a new account there? Ugh..."). Twitter and even Bluesky don't require those questions. Everyone is on the same instance, all the time.
The reality is that most don't really care for options and choice. Or even security and privacy. They want ease of accessibility. Mastodon is likely a better product (in most regards; I have and use both Mastodon and Bluesky, daily; Bluesky does a few things better), but the options Mastodon provides, especially at the start, are really more roadblocks or offramps than anything.
Because Mastodon works like what it is - 10,000 websites selectively cross-posting to each other - while trying to pretend it's like a single website. Meanwhile, BlueSky is a single website with the potential to look like it's 10,000.
The internet became 4 websites and a search engime for a reason: most people apparently prefer it that way.
Because Mastodon proved to be too hard for them to figure out. They couldn't work out which instance to use. Then they couldn't work out who to follow. Some people need to be spoon fed.
The more I learn about it, the more I start to suspect that even if the bluesky protocol somehow outlives Bluesky Incorporated it will remain a trap created by a billionaire which by design will never fail to be mostly centralised in its operation. Will this new organization see the danger and make their version federate properly? I'll believe it when I see it.
For one thing the "AppView" as I believe it's called. When I looked at the whole system a month or two ago the documentation wasn't great at giving a clear high-level overview and the details are hazy in my memory. It's at least as hard to figure out as the constellation of protocols used in conjuction with ActivityPub. Among other potential problems the protocol layer that would allow it to be fully decentralized is just missing. If it was there, I think it might look something like ActivityPub added on top of what already exists.
The code is dual-licensed MIT and Apache. Meaning it's fully compatible with a privative fork, but also a free federated network could still survive.
For now, it seems like they are planning on developing extra features on top of the basic functionalities, not paywall basic features... but time will tell.
In any case, they seem to be led by people who jumped ship from Twitter before the Muskocalypse, so it's becoming kind of "the old time Twitter". Chances are, as Musk rides Twitter's popularity and inertia until fully turning it into a dystopian dictatorship propaganda machine, BlueSky will emerge to replace it as a slightly better iteration of what Twitter used to be.
Got a more direct link for FF? This one just goes in circles, with the download link in the instructions bringing up the page that links to the download instructions.
EDIT: That was a NoScript problem. I was able to grab the .xpi once I allowed the Russian domain.
The person who posted it in my community copied and pasted the text. Idk if I should remove that post to avoid copyright issues, but here it is I guess.
The Fediverse has been around for over 15 years now. In order for one app/server to talk to another, they need to support the same protocol. Mastodon and Lemmy (and Pixelfed and many others) use a protocol called ActivityPub. Since they both use it, you can actually reply to Lemmy comments using Mastodon.
Not all of the Fediverse uses ActivityPub though. For example, the original Fediverse apps like Identica and StatusNet used Activity Streams or OStatus instead. ActivityPub didn't exist yet.
AT Protocol is another protocol, created specifically for Bluesky, although there's no reason other apps couldn't use it, once Bluesky actually enable decentralization.
It does have some useful features that ActivityPub doesn't have, like identity portability - you can move a profile from one server to another without having to change username or refollow everyone. AT Protocol lets you use your own domain name as your username, even if you don't host your own instance. With Mastodon and Lemmy, your identity is tightly coupled to the instance you use (i.e. an account on Lemmy.world is always going to have @lemmy.world at the end), which makes it a pain to move to a different one.
It's worth pointing out that while ActivityPub doesn't currently support account migration (although there are proposals in the works for how to do this), Mastodon does have a weak form of support right now.
You can create a new account on another mastodon instance, then you're able to point your old account to your new account.
Nostr is great for privacy and for crypto, but not yet suitable for the general public.
Asking an average user to secure a cryptographic key for their identity, when most can barely hold onto a user:pass, is kind of ridiculous... so Nostr is selling a $100 "authenticator box". Not particularly user friendly.
One strong point of Nostr is Bitcoin LN integration, which potentially could work as a source of revenue, but the look&feel is not published enough, while at the same time trying to offer more interaction types (like the marketplace), than what people really want: Twitter's sweet teet.