Come on, we are programmers. Tradition is undefined behavior and out of spec. If you expect contributions, _get it in writing_. Copyleft was always the way to

Come on, we are programmers. Tradition is undefined behavior and out of spec. If you expect contributions, _get it in writing_. Copyleft was always the way to assert what you expected without this passive-aggressive "The user MAY contribute code to us or MAY just reap huge profit and contribute nothing."