The purpose of such writing is to be understood only by one's own side, to be a nod and a wink to say, "we know what I'm talking about, don't we?", and to leave no definite point for the enemy to attack. The difficulty that one has created for anyone outside the circle to engage with the matter can then be taken as further proof of their evilness.

If I look through this thread I find that there are plenty of people who had no trouble engaging the article and pointing out things of disagreement.

It's no easy text and you probably need some understanding of the underlying ideas, but it doesn't seem to me to be impossible to engage.