Well, we are getting a great deal of maybe-itis, including the entire clade structure at this point. That's not helping newbies understand what's required of griffons. Nor do they need to know historical details not relevant to racial roleplay. Frankly, what they do need to know is getting a bit lost in all this.
I'd like to suggest reducing things down to two or three help files, and then putting the rest in books.
"Help griffon" could be what every player should know about griffons. Thuban's help griffon, with paragraph 3 and the Razorbeak reference removed, would be excellent.
"Help griffon-culture" could be what griffon players should know about griffons. Paragraph 3 from help griffon should go in (possibly with the mating stuff removed, which is getting maybe-itis). So should the first paragraph of help griffon-culture. Then we can select from the best and most definite of the other material.
"Help griffon-clans" could be what griffon players should know to create a clan for their backstory. I'm not sure this is even necessary. But if we want the clade system to be official, here's the place. Again, limiting this to a few paragraphs would be nice.
I'm happy to take a stab at such help-files if there's any interest. People who complain should do their share of the work.