As noted elsewhere, I have personally discontinued use of Physics.SE, since it seems to me that it no longer acts as a forum for research based physics Q&A. Over the past 12 months there has in my opinion been an ongoing deterioration, to the point that the site has almost been taken over by interested amateurs, semi-cranks, and overzealous moderators, that appear to prioritize forceful administration and control over intellectual inquiry.

This stands in contrast to MathOverflow, which continues to grow, with very active participation from leading researchers across most branches of mathematics. On MO you will see leading researchers, sometimes even Fields medalists, ask questions at the edge of human knowledge, almost always quickly receiving highly qualified answers. This simply does not happen on Physics.SE.

Quoting Physics.SE/About: "Physics [.SE] is a question and answer site for active researchers, academics and students of physics and astronomy". As I see it, this mission statement is no longer being fulfilled.

Please answer with recommendations for concrete measures to significantly improve Physics.SE as a Q&A forum for researchers, academics and students of physics.