2009/3/9 Ben Finney bignose+hates-spam@benfinney.id.au:
I think this clause would be well outside the bounds of copyright law; or, if it's not, it should be. Copyright is *not* a tool appropriate for exercising arbitrary control over recipients of a work; it is a tool for protecting *rights* of the copyright holder. The further you get from reasonable rights of an individual into affecting the lives of others, the further it goes from a right of freedom toward a grant of power over other people. Your proposed clause, as far as I can determine, is clearly an exercise of power over others, and not a right that anyone should have.
In this sense, it works like an EULA, with the same ethical problems.
- d.