I am a bit confused about how to use the VLQ flag. I saw this one-line answer and thus left a comment asking the OP to elaborate and at the same time flagged it as a VLQ answer, because the info of VLQ flag states that:
Very Low Quality: This answer has severe formatting or content problems. This answer is unlikely to be salvageable through editing, and might need to be removed.
And the answer I flagged definitely has some content problems. After a quick search of VLQ flag questions on Meta, I found this line by dmckee in his answer:
...These are usually very short or consisting mainly of a link.
Although this line is meant for automatic flags, but it implies that it is perfectly fine to manually flag such posts as VLQ.
But, to my surprise, that flag was declined (which means a mod handled the flag and declined it). And the reason given for declining the flag was:
declined - flags should not be used to indicate technical inaccuracies, or an altogether wrong answer
And when I flagged the post, I was just too lazy to read the whole question and figure out the correct answer and then flag it due to its correctness. I raised the flag only due to the quality, the correctness of the content was secondary.
So was this a fluke (on the mod's part), or are VLQ flags not supposed to be used for such answers? If the reason is the latter option, then please explain what should I do with such one-line answers.