@bes You opened my eyes, thank you. I thought that creation of a new custom client API for Mastodon with strictly centralized communication was a developer's desire to do at least something "new"... What a naive I was when I tried to argue at https://github.com/andstatus/andstatus/issues/419 that federation-oriented API would be better for GNU Social community and wandered why I wasn't heard...
Now this looks like a deliberate decision for Mastodon to wall-garden users in separate instances. Quite appropriate for a corporate customer, but bad for federated social networking?!
@mcscx