Well, finally there is a concise word someone whom we can trust more than we can trust others in the field, and they took their time to clarify information and to teach public. Their contribution is enormous and one can always learn from them, no matter how strong one's own expertise is. I listened to rms last year in Sarajevo, he is certainly authoritative in that field and also promotes very same goals that were my own reasons to get involved with IT in the first place.
I, for one, would always back Mr. Stallman's views, opinions and teaching; rather than some Andrea Kempe or D. Brewer who spam my inbox on regular basis. It is very important to spread the word on the copyright and issues behind it; it is crucial for civilization's development and growth.