I do not assume a static number of researchers, nor do I see why you would infer that from what I said. Of course there are more researchers going into these f

I do not assume a static number of researchers, nor do I see why you would infer that from what I said. Of course there are more researchers going into these fields. The more people enter into a field, the more likely the typical person entering that field is going to be a mediocre researcher, and the more likely that their work is going to be crap. Sure, in the case of a very small and new field with promise of intellectually stimulating work and structural advantages for eliminating bullshit, adding more people and papers is likely going to be a net benefit. But realistically many established disciplines can only add people by lowering standards.