I think you are both correct. For the frequency of such interactions here is a simple experiment (that I know to work): Follow a couple of hand picked accounts

I think you are both correct. For the frequency of such interactions here is a simple experiment (that I know to work): Follow a couple of hand picked accounts on Twitter. Over time Twitter will suggest who to follow, follow these accounts as well. Within the next 2 months or so, your Twitter feed will almost completely fill up with that cult. It feels like a completely different world, it's scary.