As a physicist, I know that "quantum", "magnets", and "crystals" are all common heuristics for identifying pseudo-science. On the other hand, my thesis involved all three and I've had frustrating experiences with "skeptics" trying to debunk my work. It doesn't help that there's an alternate explanation for our apparatus that is simple, obvious, and wrong (it subtly violates conservation of angular momentum).
...well, except for posts about mindfulness or Soylent or whatever.