Q:

Flag Declined after posted edited the post

This question has been obviously asked before here but I didn't get the answer that I was looking for.
I am kind of confused. I flagged a post today. Please see snapshot.

It was an appropriate flag when I flagged it. However the user edited the post 2 hours later and changed the content and my flag obviously didn't hold good. In such a scenario, my flag weight suffers. I have 3 flags declined today. I agree with the reasons why two of the flags got declined but this one didn't make sense to me.
Usually the flag gets actioned in 15 to 20 mins but if a flag gets actioned after hours, then I suggest checking the time when the post was flagged and then deciding whether the flag was helpful or not.
Maybe I am missing something obvious?
EDIT
Just to make my question more clear, I am not questioning the time in which a moderator actions a flag. My query is more towards the "Helpfulness" of the flag. If the posters keep amending the post then the count of declined flags will definitely go up. My suggestion is to check the flag time and then decide whether the flag was helpful or not immaterial of the fact whether any action was taken on the flagged post or not.

A:

Generally speaking, moderators dismiss flags based on the content of the post at the time it was flagged, but we don't always have the time to check the edit history.  C'est la vie.
If a post has been edited since the flag was cast, I generally dismiss the flag as helpful.

