[Nicol Bolas]

I'm very ignorant with coding, but I'd imagine trying to make the reply button do this automatically would be a major pain in the ass. I had no idea this was even a thing on the forums though, that's pretty cool.

I can imagine so yes. People honestly just need to know when to shorten replies. You can always just edit the text and remove unneeded parts of quotes which shortens A LOT. For example, I removed my prior post when replying to your post.