It is even worse than copyrighted APIs. Such attitude will allow Microsoft to sue KDE for Windows look-and-feel and LibreOffice for Office look-and-feel, even w

It is even worse than copyrighted APIs. Such attitude will allow Microsoft to sue KDE for Windows look-and-feel and LibreOffice for Office look-and-feel, even without patents. Good features and ideas should be copied as widely as possible instead of reinventing the wheel for the sake of difference.