Those arguments are just another echo chamber where the echoing content itself is meta rather than specific. So instead of "X is Y", it's more like "you should

Those arguments are just another echo chamber where the echoing content itself is meta rather than specific. So instead of "X is Y", it's more like "you should use method Z to determine whether X is Y". It's just the same breed of "correlation is not causation", "more critical thinking is needed", or "citation needed" as you mentioned.