Fwiw I'm going through some patches looking for patches to review.... And I'm finding that the patches I'm seeing actually did get reviews, some of them months ago.
If there was any substantial feedback since the last patch was posted I would say you should change the status to Waiting on Author when moving it forward rather than leaving it as Needs Review. Ideally there should be very few patches moved to the next commitfest as Needs Review. Only patches that have been not getting attention and the author is blocked waiting on feedback.
