It is good that you admit you are an O'Reilly employee, but that still makes your words susspect.
But you have inadvertently proved me correct without knowing. You admit that O'Reilly has added its own copyrighted material to the perl core. As everyone knows, the GPL is viral, so this means that O'Reilly has control of perl. This makes me sad, because I love perl, but I will now not use it any longer and demand that my local library remove all scripts written in perl from its web page, because it is now being controlled by a corporation.
Please, people, consider this, do you want to go on working for a corporation without getting paid? We should all move to PHP, it is a better language anyway and it is true Open Source. Everyone who loves freedom must agree with me.