I've personally been a bit annoyed by the fact that remains are auto-scrapped if what they rebuild to is at their cap. I lose a bunch of nifty positioning information just because I didn't realize stuff was still waiting to be rebuilt. It seems more intuitive to me that the remains would simply be unable to be rebuilt, but still be there.
Anyone else have any thoughts, before I toss it onto mantis?
EDIT: Possible alternative, remains still consume supply of the thing they will rebuild too.
EDIT2: Also, the remains rebuilder bug getting "stuck" on lower priority stuff (
http://www.arcengames.com/mantisbt/view.php?id=14662) is still around.