If there is any way you could extend this collection to include some chronological and/or raise sequence information it would greatly help those interested in doing that kind of analysis on the data (what year was this version of the deck used, and was that a seed or Series C round, etc).
I'll assume that kind of data may not be core to your interests in decks, but having a standardized way to present it in your pages when available and an easy way for those who have that sort of info to send it to you would help make this collection grown in value.
It may also be interesting to eventually have multiple decks for a given company, both for different raises and within a single round (many times founders will tweak and revise their deck based on feedback as a round progresses). Just getting one copy of a deck is hard enough, but you might at least think towards the question of how would you present the data if you had multiple different copies of the seed round deck from an interesting unicorn.
Thanks for assembling and presenting this wonderful collection.