I would argue that you need monitoring significantly sooner than 500,000 users. I guess, until then, you just use Twitter noise for monitoring? Seems like pretty bad customer experience.<p>If I have something in an environment that I would start to consider &quot;production&quot; (i.e. someone relies on my product to do something regularly), then I&#x27;d have monitoring regardless of the number of users. Even something as simple as, &quot;Am I returning valid data from GET &#x2F;&quot;?