What famous songs (classical or any other genera) have been recorded and edited with Audacity?
In other words: Do professional sound engineers use Audacity for production releases?
Four Tet regularly uses Audacity and to answer Clark's question, familiarity with the software.
Sure, there are plenty of recordings done with Audacity, but why would a professional use it while there are many more functional programs available?
In a pinch, it would work well enough.