Despite the unethical nature of the data, it is available elsewhere. Its presence here allows Snapchat users to see if they are affected by the leak.
Good high quality leak of confidential user info… the NSA has it already so it's not technically a leak.
While the actual leak of this private user information is likely unethical, this database provides snapchat users with the ability to check if their private information was exposed in the leak. Since the site is unavailable due to traffic at the moment, there are also a few web apps that have been created to quickly check if your information was included in the leak:
http://robbiet.us/snapchat/ — search by username
http://www.snapcheck.org/ — search by phone number
This site has hacked snapchat and is willing to sell users information to third parties.