Doesn't matter. This site just sends it to Amazon to send to your kindle, it doesn't push it directly.
That's correct. It goes to your Amazon.com Kindle account. But we also let users download EPUB and MOBI versions directly without sending to Amazon servers. So that's also an option if you prefer to side load the files.
That said, this looks pretty clean.
Ref 1: http://www.theguardian.com/money/2012/oct/22/amazon-wipes-cu...
Ref 2: http://boingboing.net/2009/07/30/high-school-student-1.html