Hmmm i think you are mixing up objective and subjective.
The old system implicated a "value" (ie. Senior coder, Master coder) to the quality of the work of a coder, only based on numbers like number of installs or number of releases. The problem with this was that the number of releases does not say anything about the quality of the work.
With the new system we have been trying to present an objective number that does not implicate anything about the quality of the work.