Yeah, "first source" is the key here. The information should be available openly and independently of any 3rd-party platform.

In a broader sense, I believe that every person who publishes on the internet should have a standard way to keep their profile data (accounts, posts, etc.) in a secure, user-owned vault that is independent of any company or institution and platforms should have to pull data from that place (in a restricted, user-controlled way) instead of from their own servers. Platforms should be exchangeable, profiles should be entirely user-owned. But of course, this is just a dream and hard to realise technically and economically (incentive-wise) with our current systems. Decentralised protocols are a step in this direction, but unfortunately still too technical/complicated for most people to really "own" or host their data themselves.

ATProto attempted to do this with their PDS based structure but it isn’t fully decentralized yet. The vision is similar to what you describe though.