@rafael_xmr @monero Support for portable objects can be added to existing Fediverse applications, the idea is relatively simple. However, implementing it might still require significant effort because of the fundamental shift from "one account -> one server" to "one account -> multiple servers". I've started to work on this in Mitra, but we're still several months away (at the very least) from anything usable.
Once this idea is proven to work, I expect rational developers to adopt it, because the benefits of data portability seem to vastly outweigh its downsides.