So to get this right, Robert Vienneau is an idiot because he links to d-squared, who you say is an idiot because 1) is mean to economists in blog comment and 2) he gets some econometrics wrong in another post.
Therefore, Brad Delong and Arnold Kling are also idiots, because they regularly links to Davies and has interesting discussions with him. Or is there some exemption for economists who declare themselves mainstream? I don’t get your evaluation process here.
Well if you assume the detail is irrelelvant of course it doesn’t matter. My point is I really do not understand why that is assumed if it’s such a known issue that aggregation is tricky. To an outsider it looks like “mainstream economics” ignores quite a bit of important cavaets when its shilling policies to outsiders.