It's annoying to get thrown out of Approval in several cases; but some cases are valid. Either way, what can be further annoying is not having Code Collaborator indicate any information in the code r...
We use the "approved" state to know when reviewers have completed the review. We also have the settings so that all reviewers and the author must be in the approved state prior to allowing the moderator to complete a review. The fact that anytime an new comment is made or a new file is uploaded all previous approvals go away makes for gumpy developers since the moderator has to constantly remind them to approve the review.