When you click on "Flag" under a post, you get a dropdown asking "Why does this post require moderator attention?" One of the options is

• needs author's attention

  This question is off-topic or cannot be reasonably answered in its current form and needs revision by its author.

  This flag will be added as a comment to this post's feedback thread.

The title of the modal is "Why does this post require moderator attention?", but the option is that it "needs author's attention" (emphasis my own). This immediately confuses anyone looking at the flag option. Is the flag going to the author or the moderator, or both? This is slightly clarified by the text below, but it's still something to keep in mind.

Also, it isn't a flag. It doesn't raise a flag. (This is honestly probably the bigger reason)

My suggestion is that it should instead simply be a notice rather than an option. For instance, something like this:

This way, instead of users being able to select and submit a "flag", users are asked directly to add a comment instead, making it much clearer.