This is interesting.
The Imperial Library is made by the developers? That's something new.
The Imperial Library is where things like these are stored.
What is posted on this forum has the tendency to fall off it. Forum gets purged every now and then and we have also had a few complete forum changes, where everything started from scratch.
Developers often explain things using an in-game voice, and it then gets printed on the lore forum.
These things are then copied and stored on the Imperial Library.
The Imperial Library collects and stores all information about Elder Scrolls.
In-game books, dev texts from the forum, that sort of thing.
Technically its a collection made by fans, but the rules and regulations as to what goes up there ensure that it is the most reliable source of TES info out there.