Good questions. There are even more problems. For instance if LOC is one part of the performance metric, one could add excessive comments and/or choose code fo

Good questions. There are even more problems. For instance if LOC is one part of the performance metric, one could add excessive comments and/or choose code formatting style that increases LOC. Conversely, some developers using concise styles and generally shorter code would be perceived as less performant. It seems to me that such 'low level' metrics are hard to grasp correctly and should only be used along with big number of other such metrics (commit frequency/distribution, tickets closed, builds run, lines reviewed, features built ...) and even then only as a additional info and not final word.