hannamyluv - 8:22 pm on Aug 29, 2013 (gmt 0)
It sounds like you were sandboxed. I use to see it all the time when I was a consultant. New site would do well for a few months and then suddenly lose traffic from Google.
It is one of those cannot confirm or deny things with Google. My theory is that it is done to discourage get-rich-quick types.
Theory goes that Google wants you to prove the value of your site. They give you a little so you can get started, but after that, you have to prove yourself before you can rank well. Again, all theory and anecdotes.