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.
When everything is measured in terms of engagement, content will be optimized for addictiveness. Not entertainment or artistic merit. Not intellectual substance or creativity. Pure, plain addictiveness.