I have in the past tried to apply the same technique when it comes to researching similar topics in Kabbalah, Western Mystery Traditions and other paths. Whilst the intrusion of an author's ego, bias and prejudices may be relatively easy to detect, the accuracy of the information is in my experience a lot harder to verify. And some topics are so ancient that it gets really hard to use linguistic archeology or other techniques to strip away the layers.
One of the more obscure topics that I have so far had little success investigating involves the Watcher angels. Two conflicting sources of information that I have come across recently are Gordon's Rune Soup blog and Rabbi Ariel Bar Tzadoks koshertorah.com site. For example, compare the archonology series by Gordon with this much, much shorter essay on Watchers by Rabbi Bar Tzadok.
To understand the former takes in my view a detailed understanding of Gnosticism, about which I don't know much. To grasp the latter takes a detailed understanding of Angelic lore in Kabbalah, about which I don't know much either.
|Every Angel has a given role, some heal, others destroy|
I am left with a whole host of questions and few answers. Too many sources which are cloudy mirrors and messages from non-human sources which have become garbled by ego and agendas. As well as fistful of questions... I have the vague sense of unease that despite all the incorrect predictions of the past, things may indeed moving at an accelerated pace now.