Thanks for this, Raam.
I have an another question — which might be a bit trickier. Can you figure any way to switch between a threaded comments structure and a flat comments structure on a post-by-post basis in WP? The only way I know how to do this is to set up WP as a multi-site, with one of the multi-sites enabling threaded (nested) comments under Settings > Discussion, and the other one disabling it.
For my part, I think a threaded comments structure is preferable for many types of post but a flat comments structure is best for posts on topics that are inclined to devolve into off-topic arguments between commenters.