I've noticed this too. I think that although there are a lot of people on Steemit who want to create and read original content...there are also just as many who don't. There are way too many people focused on upvoting and gaining followers instead of building a community. If I could count the number of "Great. I followed you. Follow me too." comments, I think I would be rich already. Maybe there could be some quality control added to the system. A minimum word count? I'm not sure if anything can be done at all to be honest, because there will always be people who are just here to make a quick buck and leave.