Noah:
m starting to pay attention to the comments on the stories I read. I'm trying to figure out what's actually helpful. I know YMMV. Maybe some of the "legacy authors", especially those encouraging new members to comment, could instruct us in the art of criticism.
I really appreciate the care you're taking to get it right, but perhaps you're overthinking? To me (sadly, a 'legacy author' i.e. one "superseded but difficult to replace"), a comment doesn't have to be 'helpful' as such, though that's great if you're so inclined. A comment is simply an acknowledgement in written form that you read the story and wish to let the author know SOMETHING about your experience in doing so.
With the request for 'meaningful comments' I believe the administrators want to discourage the type of comment that says so little, so tritely, as to be...meaningless. They're not expecting Aristotle, or that you dismantle the language of the story to expose the relational quality of meaning. We didn't all shine at Eng Lit in school.
A comment could be about any or all of:
your feelings about/response to the story
the spanking
a character
a moment in the plot or the plot overall
the setting
the style of writing
the structure of the story
a detail
a phrase that struck you
In this case, then, the 'art of criticism' is to say whatever you like.
You're in a hefty majority when you state that you don't wish to comment negatively. Very few of the 829 authors featured in this library write professionally, so most of us who write comments here choose to focus on positive things rather than highlight shortcomings (though many authors do say they welcome 'constructive criticism').