Most of those pitch decks are "after the fact" fabrications, not the actual original decks. I'm afraid this resource is nearly useless, even if I admire how much work went into it.
Thanks for the admiration for the work I put into it. It didn't take too much time and it was a fun project to work on :) I'll try to remedy the fabricated decks
If you read the comments here you'll find the author saying "I don't want to promote a 2nd year business student's work as an original pitch deck so I can look more closely into the provenance of problem slides if you could name these and I'll either redact them or adjust the title accordingly. Thanks for bringing this up :)"
Don't think it's quite as dramatic as you imply here, and I don't think anyone is deliberately fabricating slide decks in order to trick you.
The site claims these are original pitch decks from famous companies. Exciting!
So, I look at a a couple, but quickly get the feeling that these may not be genuine, that this site might be theonion of pitch decks, or something. I go to HN comments to see what others think.
I was disappointed to find that the author of the site apparently doesn't really know if these are real or not. I'd like to see more than a passive aggressive "oh gee thanks this was a fun project 2nd year business student blah blah I'll look into it", when the site clearly claims to show me “Facebook's original pitch deck” as the FIRST one which is very obviously not genuine.
In a couple spots I know they are. In others there's foresight that the founders simply wouldn't have had. In some the tone is clearly 2 year business student etc... they are not real pitch decks. I've seen more than my share of real ones to know the difference.
Sorry man... I'm sure you have good reasons to question the validity of some of them and I don't doubt your sincerity. It was my understanding that they are all legitimate. I don't want to promote a 2nd year business student's work as an original pitch deck so I can look more closely into the provenance of problem slides if you could name these and I'll either redact them or adjust the title accordingly. Thanks for bringing this up :)
I just want to add my 2 cents in hope that it's helpful. I'm a co-founder/partner of a seed-stage VC fund and do keep track of the pitch decks we've seen as a partnership over the past two funds spanning six years.
Comparing these decks to the decks I have in our tracker (a dataset of similar size to yours), there's a lot of differences. Even if you only take the pitch decks of the successful companies (most of which we didn't invest in), a lot of these decks look a lot more polished.
Here's what I think is going on: Some decks are undoubtably real seed pitch decks, some decks are demo day decks from accelerators, and a few of these decks (Facebook's, for example) are after-the-fact business school exercises from students.
So, I do think most decks are real, but what's tripping up some people is how polished some of the decks are. True pitch decks used to get a seed round or into an accelerator aren't very polished because you're constantly changing the deck based on feedback over the span of 20-50 pitches. The truth is that many investors I know worry when they see a too-polished deck that everyone else has already seen the deal and passed :-P.
