The Compendium is an indispensable tool. For example, right now the Jonny Quest fan community is stupidly scattered and dead. It was a hodge-podge collection of Geocities and Fortunecities sites with random forums here and there and an overarching mailing list which switched hosts a few times and lost its own history.
My point is, there was no Compendium; no ultimate resource, no permanent beacon in the sky. The Compendium aims to include everything and do so eternally, or at least with a level of dedication above your average fan fiction writer's angelfire site. Aim high.