New ask Hacker News story: Ask HN: Why are toggle switches replacing checkboxes? Isn't on/off less obvious?

Ask HN: Why are toggle switches replacing checkboxes? Isn't on/off less obvious?
6 by RjQoLCOSwiIKfpm | 5 comments on Hacker News.
Every website and software seems to move to the left/right sliding thingies. I know the right side is on. But whenever I have to use them, I always have this little doubt on my mind of "did I really set it correctly?" Am I going crazy or are these things a fad with much worse usability than checkboxes?