Do us all a favour and steer clear of personal comments.
You have advocated, on previous threads, a belief in a universal "information exchange system". Since "information" in physics always implies particle
exchange, and by definition particles have mass/energy, then assuming you associate "thoughts" with "information", it follows from your system that thoughts should have mass (and therefore weight). The fact that such mass/weight is difficult to detect should be irrelevant to you.
If on the other hand, you don't wish to pursue the "thought-information-particle" argument, it suggests your system is ontologically inconsistent.
(From my point of view, that has always been the case irrespective of the physics).