We've been getting a lot of complaints about moderator flag decisions being incorrect or inconsistent lately.
Flag declined, but question closed for the same reason
Why does flag marking as helpful/...
Today I flagged this answer of Thread exiting message in .Net MVC console as "Not An Answer."
EDIT: the answer has since been flagged again and was subsequently deleted by a moderator.
To paraphrase ...
My flag got rejected by flagging as spam on this post:
What is a columnar database?
It's not an answer, just a link to a blogspot.com post
The author has recently joined to post just that