Every retag request (and re-request) takes another Q&A post which clutters up meta with a very short-lived and repetitive process.
Would it be better to create a generic retag request "question" and add a new answer for each specific request? Answer voting can take care of opinions and comments can take care of what little meta discussion might be needed for each request.
As the "retag question" becomes too long to effectively manage, it can be closed as "no longer relevant" and a new one created (monthly?, periodically?).