Sounds like it was written by someone who lacks good infrastructure to collect and search logs.<p>E.g. it is very useful to collect all user actions and other major actions. So later when user face some problem and sends support a message you know what was going on. You can send user a message that his issue was fixed instead of asking the user for a reproduction steps.<p>The aggregate numbers poorly tell you a story what has happened to this particular user and at scale there are bugs that just some ppl will hit.<p>You can process logs and produce the metrics out of them, but you can&#x27;t do the opposite. Saying logs are just human readable actionable errors seems backwards to me.