We hear too much of using Blockchain for "Social Network Applications" (such as Facebook or tweeter) !
I really do NOT understand how blockchain can be useful for Facebook or tweeter ?! Where, data in social networks applications are not (and must not be) immutable and transparent to everyone.
Assuming someone in one of the social networks applications writes a new comment, this comment will then be verified in a central server of that company and if everything would be right, the comment will appear in the App. This user may then decide to delete this comment. Under some conditions, it will be disappeared from the App.
From my point of view, implementing such scenario based on an open and permission-less Blockchain is not feasible at all. And if Blockchin is private and permissioned, then chaining blocks (Blockchain) do NOT make sense, where the entire chain can be replaced by another one by that company.
Am I wrong?
Can anyone explain one of the use cases of Blockchain for Social Networks?