> Like if I join some node then one day it's offline and all my data lost
They just disappear. You're not appending to a long-term immutable blockchain-like archive. You're posting things to the internet and the nature of posting things to the internet (or anywhere for that matter) is that nobody guarantees they will be around forever.
> Or what about those times when entire instances get involved in dramas and end up defederating
Identical to "what about those times when Twitter bans someone whose tweets I want to read?"
> What all this talk about fighting censorship while actively engaging
They just disappear. You're not appending to a long-term immutable blockchain-like archive. You're posting things to the internet and the nature of posting things to the internet (or anywhere for that matter) is that nobody guarantees they will be around forever.
> Or what about those times when entire instances get involved in dramas and end up defederating
Identical to "what about those times when Twitter bans someone whose tweets I want to read?"
> What all this talk about fighting censorship while actively engaging
Censorship and moderation are the same word