Получается, что нельзя. Да и в условиях вот что: "...Google shall have the
perpetual, irrevocable, non-exclusive right to use, reproduce, modify,
edit, translate, publish, perform, display, post, transmit and
distribute («Use») your questions, comments, and/or the corresponding
answers without compensation to you, anonymously or in the aggregate,
for internal or external purposes, alone or as part of other works in
any form, media, or technology, whether now known or hereafter
developed and to sublicense such rights..."