This happens in offline communities dedicated to learning too. It’s common to see professional conferences where newer people go to lots of panel sessions and

This happens in offline communities dedicated to learning too. It’s common to see professional conferences where newer people go to lots of panel sessions and more experienced people hang out in the hallways (and bars). University and job training programs are kind of all about this process. When you connect with your old study group you’re probably sharing memes and memories, not expertise. The transition is just more explicit because usually at some point you graduate or otherwise move on.