This is not a duplicate of Editing duplicate banner edited into the text of the question. The main question there is only if something "special" will happen if someone edits out the automatic text. The answer addresses this question, but it's from an SE employee; I'm asking specifically for the community's opinion on this, which may be different from SE's position.
Should users with gold-badge dupehammer privileges modify older-style duplicate closures where the duplicate targets were edited into the question body by the Community user, into the newer form of closure where the list is an automatic box added above the post? There exists an official response here, but I noticed a user going around and doing this, so I was wondering if the community's opinion was different from SE's.
Here's an example revision history where such a thing was done.
In my opinion, there's no advantage to doing this because:
There isn't much visual change made to the post, other than some formatting differences and that the heading now says "This question already has an answer here" instead of "Possible Duplicate".
Those posts are unnecessarily bumped when this action is taken, from both the reopening and the subsequent edit to remove the target list from the post body.
The original close voters and original closure date is no longer shown in the question's notice; it instead just shows the one user who performed the modification, and makes it seem like a recent unilateral decision rather than a consensus a long time ago.
I can see one potential benefit: normal users can no longer modify the target list, which now requires a user with gold-badge privileges. But there isn't much evidence of this happening on a wider scale, and as the posts are bumped anyway when that happens, that can easily be rolled back as needed.
Should users go around and change all these old-form closures into the new form? What if a user comes across one of those posts, but it's not active in a while? if it's recently active?
What's the community's position on this?