we began looking into changing the rewards curve for comments.
PLEASE CLARIFY WHAT YOU MEAN BY "COMMENTS"
I am not joking. In steem code every post and comment are called a "comment" (technically speaking a main post is a comment without a parent).
This naming convention was a reason of confusion during last hardfork.
By reading release notes from last hardfork:
All comments are paid out 7 days after creation and there is no longer a second payout window.
A lot of people really thought that this will going to be only about comments (replies), not main posts.
In the code both posts and comments are treated as 'comments'. Posts are 'comments' that don't have a parent. That is the source of the confusion, but I agree with you that the presentation should be more clear.
In this context, it is being used as non-post comments (replies).
I agree - it can be a bit confusing at times :)
We are sorry for the confusion. The intent of this is all content (posts and replies).