I flagged this answer as not an answer because it's a link-only answer:
My flag was declined as "a moderator reviewed your flag, but found no evidence to support it".
According to Shog9's famous post about link-only answers, a link-only answer should be flagged as not an answer when it contains no useful information whatsoever other than the link. The only information in the answer itself that's not entirely generic is "format existing text as vertical text", but that's basically just the title of the question and is definitely not useful as an answer (and it's arguable if even that should count since it's part of the URL).
Also the link is broken and now just redirects to Microsoft Support's homepage, which is completely useless. So even if link-only answers were allowed I wouldn't see any reason to keep it. Besides there's another answer to that question with a higher score that actually answers the question, so it's not like deleting it would remove any information.
The only thing that's different between this answer and other link-only answers I've seen that have been deleted is that this one is accepted. But I've seen link-only answers with more upvotes than this get deleted. Also, since this answer contains nothing more than a broken link, it's completely useless, regardless of whether or not it's accepted.
So why was my flag declined? I can't see any reason at all to keep this answer.