mitchellh/vagrant — pull request #4825 by gajdaw (2014-11-14 06:56:06+00:00)
Title: doc destroy - notice about space occupied by the box

Hi,
Because `vagrant destroy` doesn't remove the box installed during `vagrant up`, the statement:

After running this command, your computer should be left at a clean state,
as if you never created the guest machine in the first place.

is a bit of an exaggeration, I think. Maybe you will find the notice I have written useful?