I never really got this line of thought. "I want my users to have all these freedoms, and then the freedom to deny all these freedoms to their users of this same base." It always sounded like "I want these people to have the power of voting, and then have the power to restrict others from voting."

Anyway, I went from GPL to BSD/MIT back to GPL (for "large" projects; small projects are public domain or MIT). I'd rather chain people with freedom while we have the copyright laws to do it than hope people will respect the freedoms I want others to have.