I was stating that the author may not have the knowledge to write accurately about a complex topic they don't seem to understand. Had you phrased it just like

I was stating that the author may not have the knowledge to write accurately about a complex topic they don't seem to understand. Had you phrased it just like that, I question whether the original post would have been flagged. As it was, you quoted one sentence and said the author has no credibility. Call it poorly phrased, call it rude, maybe English isn't even your primary language, but "politely stated" doesn't appear to be on the menu of choices for how your original post came across. Which is unfortunate, because it would appear that you have some knowledge on the topic. Just my two cents from the peanut gallery.