Logs actually are a form of documentation. Documentation can provide instructions on how to diagnose and fix problems, and that's what logs do: tell a human bei

Logs actually are a form of documentation. Documentation can provide instructions on how to diagnose and fix problems, and that's what logs do: tell a human being what a problem is and how to fix it. Remember that often the person reading the logs is not the person who wrote the software. Maybe it's an Ops person at 2AM trying to fix a broken deploy. Maybe it's a developer who joined the company 3 years after the software was written. Maybe the log is passing through an error message from 3 layers deep in the stack. The more literate your logs are, the better.