I can completely understand wanting to differentiate from Reddit, but to me, this is a matter of convenience and priority. Putting right after the article implies commenting on the article is emphasized. Putting it at the bottom of the comment page implies a want to comment on the comments.
Maybe there’s a reason I’m not seeing here? Am I just dumb?
It’s to increase your caloric deficit - just think of all those calories you’re going to burn scrolling to the comment form, cumulatively.
Soon we’ll be able to recognize kbin users from their jacked index fingers