Earlier quoted context omitted.
I exited academia for industry 15 years ago, and since then I haven't had nearly as much time to read review papers as I would like. For that reason, my view may be a bit outdated, but one thing I remember finding incredibly useful about review papers is that they provided a venue for speculation. In the typical "experimental report" sort of paper, the focus is typically narrowed to a knifes edge around the hypothesi…
My feelings about that outsider thing are pretty mixed. On one hand I'm the person who implemented the endorsement system for arXiv. I also got a PhD in physics did a postdoc in physics then left the field. I can't say that I was mistreated, but I saw one of the stars of the field today crying every night when he was a postdoc because he was so dedicated to his work and the job market was so brutal -- so I can say it…
Just some very outsider thought:
Could it be that this problem is rather self-inflected by researchers and their marketing?
Physicists market all the time that resolving these questions about quantum gravity will give the answers to the deepest questions that plagued philosophers over millenia. Well, such a marketing attracts crackpots who do believe that they have something to tell about such topics.
Relatedly, to improve their chances of getting research funding, a lot of researchers do an outreach to the general public to show the importance of the questions that they work on. Of course this means that people from the general pyblic who now get interested in such questions will make their own attempt to make a contribution because - well, this researcher just told me how important it is to think about such questions. Of course such a person from the general public typically does not have the deep scientific knowledge such that their contribution meets the high scientific standards.