the internet era of culture is a contest between the old model of top-down elite tastemakers telling you what's good and the new numbers-driven viral creator ecosystem in which algorithmic feeds tell you what you like
I'd love to have a temporal relevance filter on Twitter. "Show tweets about current affairs", "Show tweets that will be relevant for several years", "Show evergreen tweets", etc.
Generally speaking, there's a lot that could be done to enable users to customize their feed.