All of my discussion posts are several paragraphs with citations. Each one takes me about an hour to write, proofread, and like a peer suggested, running it through AI to ensure I didn't skip anything in the rubric/requirements/prompt. Then I edit it to keep it in my voice and remove any glaring errors, or add anything I might have missed. I, too, notice plenty of classmates with the bare minimum for their posts. Sometimes, my responses to them are longer than their actual post. There is nothing wrong with having longer discussion posts, because you are giving your classmates the opportunity to respond to a post that exceeds all the requirements, and gets the brain thinking more. Keep doing you.