It's finally happened: We have reached peak Megan McArdle. Her posts are now so choc-a-block with inaccuracy, lies, misunderstandings, and ignorance that it takes far too long to find, research and correct them. McArdle wins.
Take her Greek posts. They are based on her misinterpretation of what others say, wingnut conventional wisdom, biased sources, and sometimes gross error. Not only do you have to correct McArdle, to do the job properly you also have to correct all her sources. Before you know it you have spent two hours reading source material (which is more than McArdle does) and still have more errors to correct. She has achieved the wingnut brass ring: she is so wrong so often in so much volume that she can get away with saying almost anything.