No matter how many words people spend on writing about consciousness, not once have I ever seen anyone say anything revealing about consciousness. (And yes, I have read all the usual suspects.)
Like, off the top of my head, Kant or Hume. Plenty of contemporary people working away thanklessly as well, probably, too; but it's not my field. But even then, it more likely qualifies as "useful" rather than "revealing". Because there are no big easy-to-grasp-and-broadcast flashes of blinding insight. In the field of consciousness or any other.