Eli Hirsch, in his paper in the Metametaphysics book, says he wants to conjoin a “Carnapian” approach to ontological questions with a “robust realism” (p. 231) and a defense of common sense, which, he claims, “doesn’t seem to be a concern for Carnap” (p. 232). Actually, it was a constant concern of Carnap through all stages of his career. He saw a continuity, rather than a sharp break, between common sense and science (Schilpp volume, p. 934). But he also saw them as playing fundamentally different roles; he saw an increasing gap, since perhaps Newton (or Archimedes), between the ordinary language in which we live and act and the technical languages (to which alone sentences could be “internal”) we depend on for knowledge. He thought it simply unfeasible — a kind of category mistake (Huw Price considers the parallel to Ryle) — to rely on the former kind of language in the latter context.
Only the continuing general ignorance about Carnap makes it possible for people to get away with this sort of thing. Would anyone take you seriously if you said you wanted to combine a Kantian approach to ontological questions with a robust realism and a defense of common sense? Or Frege’s approach to arithmetic with Mill’s? But apparently you can still say almost anything you like about Carnap and no one will call you out on it. More examples to come.