Whenever there’s a flagged content that need to moderated, usually you want to contact the OP regarding his post and what was the problem. So usually i get this message.
I click on Agree (hide post + send PM), then it does hide the post, and send PM. But sometimes I’d rather make it more humane and add some information regarding his post. So i suggest adding a 3rd option to do the same, and giving you the option to edit the text before sending.
Why not to replace the current? because if you have a couple of flagged content, you don’t want to go back and forth to remove them all.