[ryapric]

I never really even entertained the idea of agreeing with this until just this week actually, when I was putting log statements into bash functions that were supposed to return strings -- and failed for reasons I could not understand. Six full hours of debugging later, I realized that the logs were writing to stdout, and thus were cluttering the expected return values.

I'm still not fully sold on the idea, but I now have at least one tangible example of when you would want to keep stdout clear of commentary.