However this seems a very dangerous feature, especially for new users, if someone copies a directory without realising how large it is. They might then go on to do some operation on a partially completed file tree, or they might delete files before they have been fully copied.
I’m not against KDE4, I think it is good that they are trying out new ideas, but I think this could lead to a lot of people loosing or corrupting important files.
Do you know of a way to influence the KDE developer in this matter? Or could Novell be persuaded to patch Dolphin to work in a safer way?