I don't have to read your mind when I see your behaviour. There are only two reasons to delete anyone's comments: one, if you are asked to, and two, if the person in question is intolerable to you. Let's add that you CERTAINLY did not so much as take a look at the original essay, and that you said nothing that even leads to suspect that you might have read a word of the extract, and I think few people would react other than as I have.