I don't go to Reddit for advice, but many poor souls do. I found myself reading a bicycle-related sub discussing how to "properly" use disc brakes. It was curious to me that a non-trivial amount of respondents said to intermittent hard brake application. Specifically, do that while alternating between front and rear in order to avoid overheating. Consistent, moderate "drag" braking was "bad" and to be avoided. No other wheeled sport I know of advocates such technique. I found it concerning, actually. Is this actually a thing in cycling? If so, can someone explain the physics of why?