I flagged two comments as obsolete yesterday because they referred to older versions of the post, and because the issues that had been pointed out were already fixed:
This, where someone asks for a source which was later added, although looking back on it, I imagine that the comment might still be useful for some people who might not have seen the edit yet.
This, where someone asks for edits for grammar/readability that were later made.
I later noticed today that both of my flags were declined. Why was this the case? I noticed this question on Meta, but I don't think it necessarily addresses my confusion, and while this question also seems useful, I have no idea if the circumstances were similar to mine.