anatoly techtonik, 07.11.2012 09:19:

>>> 4. Recipes are licensed, which is a too much of a burden for a snippet
>

> I also found that ActiveState site doesn't allow to release recipes into
> Public Domain.

Which is ok because "Public Domain" is not a universal concept. It won't
work in all countries where your recipes will be read and where people want
to use them. Better use a suitable license.

MIT license or GPL license is not a universal concept either and wont work outside of U.S. universally. In court it will come down as a special case of personal copyright agreement between user and author. In this respect it is absolutely no different from the public domain notice.