It would be nice to be able to comment one someone else's comment. It would make discussing certain posts much easier. For example, on the thread where you can share your latest lot build, you could make a post sharing a lot, and then someone can comment directly on that post (instead of having to @ people and waste space making new posts every time they want to comment on a previous post)
Is there a reason this hasn't been implemented before?
Please let me know if I haven't explained myself well