I had forgotten the main point of the post, though I prefer how it turned out now.
The main point was to appease Sili with this compromise on GURPS:
Though GURPS can never be canon, it is still a perfectly valuable resource on every piece of information we are not presented with. Until Myth III actually comes out, any of its pre-release info is "wrong," and worth nothing but speculation. GURPS gives much detail on things we do not know. Equally ignorant we are regarding if the material is from Bungie or not. We do not know and can not know either way, so it's useless debating over such.
Instead, we realize there *could* be some info in GURPS that is accurate. Until something official, like Myth III, contradicts it, it's absolutely correct. Can we all agree on this?