As scrolling to the bottom of the page to leave a comment can be a hassle on posts with lots of existing comments, an option to put the thread comment box above existing comments would be helpful.
If you install KES and navigate to the setting Threads > Rearrange post order, you can dynamically change the position of the OP, the comments, the add comment box, and other elements and choose which place you want them to be in descending order. You can direct other questions to our magazine on /m/enhancement as well.