People on HN are merely a (rather biased) sample of people in the world. Just as people in general can dislike him for different reasons, people on HN do as well.
I respect him for his work in programming. I dislike him for assuming that success makes him correct in whatever theories he comes up with in physics. Particularly when he has failed to produce any testable predictions.
See https://www.scientificamerican.com/article/physicists-critic... for scientists dismissing his theories of physics.