It's strange how all these modern communication methods (blogs, forums, RSS readers) so often fail to have features that were available in Usenet newsreaders 30

It's strange how all these modern communication methods (blogs, forums, RSS readers) so often fail to have features that were available in Usenet newsreaders 30+ years ago. We had threading, searching, killfiling or scoring, marking posts to save, all pretty common features then. I'm not sure why there isn't more demand for them now.