I do keep my config backed up and synced between my computers. It doesn't change that much but it's nice having it easily synced across my many machines when I do make a change.

And no, copying text hasn't been Ctrl+c. That sequence sends a sigint to the process, not a copy request. To copy text by default cmd made you enter a mark mode which then had you essentially draw a rectangle and it would then copy as newline characters even when it should have just continued the line. The old copying process of cmd is terrible.