you don't need an api node to broadcast things. Even the most basic hived on the P2P network will accept a broadcast. There are many of those if you found yourself in the position of needing to find a friend, and they aren't that hard to start up if you wanted to use blockchain in a trustless fashion. This modification is to Jussi - a middleware that routes requests to a public api between hived (actual blockchain node) and hivemind (layer2 social media node). It isn't even a change to hived