I think it's somewhat dangerous to give political credibility to an opponent by giving them credit like that. Other people have made the same criticism, haven't they? I know I've seen that stated before about projects not taking documentation seriously and relegating new contributors to the "place they can do the least damage — documentation that non of us care about".

I saw the same darned problem at the propreitary software companies I worked with: it was not uncommon for the lesser skilled employees to be put in charge of documentation back in the 1990s. So, the problem has existed in the entire software world for a while.

This is fundamentally the problem with Guzdial and his criticisms. He takes well known problems found in the software world generally, and then tries to argue they only appear in Free Software, in an attempt to push his pro-proprietary-software agenda. I hope you won't give him credibility, even if his arguments have a certain surface accuracy to them.