It all depends on what your goal is. Back when I first started writing on Medium, I didn't follow a soul. I hardly read. So, I obviously wasn't interacting. I had no real connection on here. Most of the people who follow me are also lifestyle bloggers. There's a few here and there that may be someone I would never to think to follow, but now, I have an opportunity to broaden what I read and learn.
Everyone has their own reasons for what kind of audience they want and what kind of people they choose to follow. As for me, I want any and everyone to feel welcome here. I am happy to support people back as well. Hope this makes sense! (: