In the future we will be doing the full spatial averaging graph a la Harman 'spin-o-rama' and the CEA-2034 measurement presentation. In this review we only did on-axis, early-reflections, and listening window.
As for a crowd funded anechoic chamber, Canada kinda had something like that with the facilities at the NRCC. Floyd Toole said that Canadian companies were able to get their speakers measured for a sing, and that was a big help to Canadian speaker manufacturers. I don't think we will ever see something like that in the USA, anechoic chambers are very expensive.
As for the pollution of rare earth metals, it looks like
taking them out of the ground is even more ecologically damaging than trying to put them back in.