This has gotten way off topic but anyway. Yes ripping content does have uses but only if everyone owns the source too. You cannot make quake mods without quake etc.
The point is it's illegal because he posted it. He can rip all he wants as long as he doesn't share with someone who doesn't own it. And well I don't own the game I don't know about all the rest of you though.
I don't really think ripping is a illegal either but posting ripped items in public is. Thanks for the item I didn't want to download the documents.