Another failure mode: the replication crisis in science—where only new and surprising theses are being published, but there is no mechanism for reinforcing existing theories. This also happens in social media—people always want to learn new things. And probably more generally all the other things from https://www.gwern.net/Littlewood
There is also the universal Girardian mimetic failure mode. It is a spiral of ever increasing desire for things and status, where we want things because someone other wants it. I once wrote an essay on that in the context of internet discussions: https://blog.p2pfoundation.net/online-conflict-in-the-light-of-mimetic-theory/2009/11/25
Another failure mode: the replication crisis in science—where only new and surprising theses are being published, but there is no mechanism for reinforcing existing theories. This also happens in social media—people always want to learn new things. And probably more generally all the other things from https://www.gwern.net/Littlewood
https://www.lesswrong.com/posts/ZdtFBCtixqay5aoWF/design-thoughts-for-building-a-better-kind-of-social-space