I came across an answer in the review que that was flagged as low quality, normal enough except that it was 3 years old.
here is the link: https://askubuntu.com/review/low-quality-posts/199833
The only reason I can come up with is that it was either missed somehow by the Community, or that it was flagged but that the reviewer at the time let it pass. If the later I suspect that the fact that there was a recent comment made it appear back in the review que again as it matched the heuristics of a low quality question.
Am I correct here or am I missing something?