Warning: Spoiler! (Click to show)
I'm not really sure who/what you are responding to above, and this isn't directed at you in particular - I only mention it now because you mention "quoting long posts". One option when quoting a long post is to then put it into a spoiler (like I did above). By doing so, the quoted stuff is there for anyone to look at if they want to, but it doesn't take up a lot of real estate. Just a thought.