Scattering amplitudes and galactic momentum horizons prove that observation needs a proof, so what does trying to make up on observation do? It is like trying to peer in another universe. This is what consumed me trying to come up with theories in physics. Yet it is still done today, although the theorists have quite selective imaginations. Even in peer reviewed papers, any theory without evidence is treated just as a child's imagination.
The graviton is so allusive. We observe that it must exist due to larger observations, yet we don't have the measuring device to see it scatter. Even if we could, it may create what would keep it shrouded. I conclude that until I observe something big, I will not try to observe its qualities, and if I notice something small, I'll remind myself that it came from something big.