Why can I flag something multiple times, and why can I get different results from each flag?
I flagged a post one day, for "misinformation". Another day, while I was reviewing, I came to the same post, but not recognizing it, I flagged it again, for the same reason. I was surprised when, looking back at my flagging history, I found that I had flagged it twice, and that both flags were deemed valid. I decided that though it was strange, I would try again. My third and identical flag was deemed invalid, so that I have a total of three identical flags on the same post, two of which are valid, and one of which is invalid. Why is this?
(There is another post I have flagged three times identically, and each time the flag was considered valid.)