Some folks have moved on and no longer reviewing or approving changes that they are responsible for
New folks have adding code who may make good reviewers if not approvers
Can we get some data on which reviewers / approvers are not really doing what they are supposed to do? (so we can request if we can drop them from the file(s))?
There is a concept of a SIG in https://github.com/kubernetes/kubernetes/blob/master/OWNERS_ALIASES, but very few OWNERS files use these groups from OWNERS_ALIASES. Do we want to move to a model where we favor the sig groupings over individuals? Is that upto sig(s)? Do we want to tell them that they should review code under their purview and make the change?
It's probably time to update reviewers and approvers again...
It's been an year since the first population of the OWNERS files in https://github.com/kubernetes/contrib/issues/1389.
It's probably time to update reviewers and approvers again...