I used to use Quora a lot and that was pretty much Quora's mission statement. I can't find an explicit comparison to Wikipedia, although I've definitely seen that somewhere. But here are a few highlights from a post the founder wrote about the company's mission[1]:

"Quora's mission is to share and grow the world's knowledge."

"Quora aims to allow anyone to easily share their knowledge and in the process to dramatically increase the total amount of knowledge available to the world."

"We hope to become an internet-scale Library of Alexandria, a place where hundreds of millions of people go to learn about anything and share everything they know."

[1]: https://quorablog.quora.com/Our-Mission

> "We hope to become an internet-scale Library of Alexandria, a place where hundreds of millions of people go to learn about anything and share everything they know."

> be me

> be in Library of Alexandria

> row upon row of books as far as the eye can see

> any topic, any subject, all the collected information in the world available just because it's humanly possible to enable that

> you can practically see the titles on the book spines

> one of them looks familiar... could it be...?

> take a single step forward

> hologram stutters and flickers out

> "Phis service requires authorisation to perpetually access your Realtime User Feed in order to continue. Process authorisation?"

> (you later learn the book title that looked familiar was algorithmically constructed by a model that keyed off of the Realtime User Feeds of your public friends list.)

I don't think such pretty statements count for much, or that users ever put much weight in them. On the other hand, their behavior certainly posed them as a public space.