Decentralized text, audio and video needs some way to get attention. Recall that with the early web, we still relied on TV etc to know what sites existed etc. Even what to search for. Social media fixed that but they've become the new gatekeepers. Decentralized social media displaces them.

The social news feed (microblogging but that's a bad term) goes together with blogs, podcasts, #peertube etc like chocolate and peanut butter. They are not the same but need each other to be really awesome.