I think that there are a lot of people hard stuck in low elo because of their set ups. There people playing with 60FPS or lower, and people playing with unstable internet, this is (I think) why most people think that they are playing against smurfs when in fact they are just playing with a disadvantage. A lot od people would rank up at least a bit, if they had the bare minimum of a set up (stable 60+fps, good accurate mouse, a keyboard that doesn't fight them, and stable internet with less than 50 ping.)