Protocol complexity is, everything else being equal, bad for decentralization
Fewer independent developers and infrastructure providers = less decentralization
#nostr is the EASIEST to use social network
If you want an account that can't be rugged and dm's that can't be decrypted by a third party
On Mastodon you need to
- install and run your own server [*]
On Bluesky you need to
- install and run your own server [**]
- create a did:web identity document and host it on a domain you control and use network commands to create and configure a Bluesky account to use it [***]
On Nostr you need to
- store your nsec like any other password and maybe install a browser extension
[*] and if you want to use other ActivityPub apps you may need to run more (different) servers
[**] and even then your server can be blocked from the network
[***] and your identity can still be rugged by whichever entity controls the TLD, although that's a small risk
