In relation to our discussion about code review metrics at http://korma.wmflabs.org/browser/gerrit_review_queue.html
I just learned that OpenStack has a policy to abandon automatically reviews sitting in -1 during more than one week:
https://bugzilla.wikimedia.org/show_bug.cgi?id=63533#c1
Maybe one week is too tight for the reality of our project, but what about 2-4 weeks?
Brad and others said last week that they were not interested in code review queue metrics mixing pending -1 reviews. Maybe the solution is not to tweak the metrics, but to effectively abandon those changesets automatically?