It is better to buy than compete. (from a 2008 email) - Mark Zuckerberg

I want make sure that our products are used for good. At the end of the day, other people blaming us or not is actually not the thing that matters to me. It’s not that every single thing that happens on Facebook is gonna be good. This is humanity. People use tools for good and bad, but I think that we have a clear responsibility to make sure that the good is amplified and to do everything we can to mitigate the bad.

Zuckerberg: Yeah so if you ever need info about anyone at Harvard
Zuckerberg: Just ask
Zuckerberg: I have over 4,000 emails, pictures, addresses, SNS
[Redacted Friend's Name]: What? How'd you manage that one?
Zuckerberg: People just submitted it.
Zuckerberg: I don't know why.
Zuckerberg: They "trust me"
Zuckerberg: Dumb fucks

I think that some decisions that we made early on to localize the website and keep it separate for each college on the network kept it really useful, because people could only see people from their local college and friends outside. That made it so people were comfortable sharing information that they probably wouldn't otherwise, which made it useful in the long term for people to look up information about other people on the site.