tfm
Power dispenser
I'm pretty happy with engagement in the Fediverse.
Lemmy has about 40,000 monthly active users. Lemmy.world accounts for about 15,500 of that. That's about 40%.
This site currently measures the concentration of user data for active users: in the Fediverse, this data is on servers (also known as instances); in the Atmosphere, it is on the PDSes that host users' data repos. All PDSes run by the company Bluesky Social PBC are aggregated in this dataset, since they are under the control of a single entity. Similarly, mastodon.social and mastodon.online are combined as they are run by the same company.
So why does everyone keep referring to Bluesky as decentralized or even comparable to the fediverse
They call it marketing, I call it propaganda.
PDSes only store user data. These are full instances that can be used to browse the network. The idea is to make your account really yours. Bluesky is hosting most of them. But there are some people who do it on their own.
But bluesky controls much more important components in the network, namely the Relay and AppView.
If Bluesky decides to cut off your PDS you are pretty much alone.
Bluesky is pretty much a centralized platform like Twittler.