This is the core difference between gnu and bsd - guaranteeing freedom for all current and future users VS all current and future distributors (in particular, t

This is the core difference between gnu and bsd - guaranteeing freedom for all current and future users VS all current and future distributors (in particular, the bsd guarantees the right to fork and close - often seen as essential for commercial use in a new software or software+hardware appliance; while gnu attempts to guarantee that any downstream user will always have the four freedoms).