It's Rembetsy's turn to speak up. "Mistakes happen," he said. "We find them, fix them, and move on. The important thing is to learn something from the process, and never make the mistake again in the future."

Sussman was quick to add: "If pushing is easy enough, then pushing a fix will be too." He noted that Etsy has made its implementation, called statsd, .

The quality model for Etsy is cutting edge, but not unique. New developers are expected to push code to production on day one. That's not commit code, but push it to production.