Even with GPLv2, adding additional restrictions effectively creates a new license -- one that is incompatible with the original GNU GPL, and for which GNU/FSF w

Even with GPLv2, adding additional restrictions effectively creates a new license -- one that is incompatible with the original GNU GPL, and for which GNU/FSF will not permit you to use the GNU GPL name or preamble. (This is covered in the GPL FAQ.) This is not surprising, since the sorts of restrictions mentioned in this thread violate "freedom 0" of the Free Software Definition.