I was just chatting in chat when I saw a little ping-like circle except it was blue and on the wrong side.
So I did what any good citizen would do and I clicked it. It quickly prompted me to review a chat message that was flagged.
I tried searching Meta for information on reviewing chat flags and if that is a privilege afforded certain users at certain rep levels and I found nothing. Is this intended behavior? Similar to review queues? Offensive flags seem a bit on the moderator side of things but I am uncertain.