Since the dawn of time the posts came, down through the centuries. Err wrong canon.
Long time ago, on a site on a server far far away, we had somewhat lower quality standards. (that applies to my own as well).
So, at times, I re-read an old answer to my old question, and cringe at my own up-vote, as by today's standards - both the site's and my own - the answer clearly does not deserve an upvote. Like, having zero source support, and likely a short detail-less answer.
Had I been voting on that answer today, I would NOT have upvoted.
The problem is, I cannot rescind that old upvote, as per SE mechanics, unless the answer was edited since I cast the vote.
There is a workaround for the problem: edit the answer, thus enabling the vote to be changed.
But it seems like misuse of a feature, so I'd like to obtain community consensus of whether it's OK or not to do that by community standards, since I can see both pros and cons of this approach.
NOTE: if you think editing is a bad idea, please downvote the Meta Answer which says "yes", not this question. The question is intended to be neutral without expressing support for either option.