Following a period of discussion, comm-central is adopting the same super-review policy as mozilla-central. There are two exclusions to this: the suite/ and calendar/ directories which are covered by their own policies (suite/, calendar/).
The updated rules for comm-central reviews can be found here. We are also in the process of updating the super-review policy page to reference comm-central and the exclusions.
Just as a side-note: I expect the policy for suite/ to be modified in some way later this year when SeaMonkey devs will meet face-to-face.