The key is that the person writing the log message is in no position to judge whether it's right. The measure of logs is whether you can put them in front of a

The key is that the person writing the log message is in no position to judge whether it's right. The measure of logs is whether you can put them in front of a smart but unfamiliar persons and have them figure out what's happening. At a minimum, they should understand generally what's happening and specifically what each message is saying (though perhaps not its significance). (i.e., same as when writing code)