I don't understand why other commenters feel it was 
  unreasonable of Shaw to interpret it as a criticism.

To speak for myself: because the other interpretation makes much more sense, if you take into account that people are generally trying to be nice and helpful.

I was reading that comment, thought "hmmm, that criticism sounds a bit premature and more based on what others have written than on what Zed is writing... oh wait, that's because he isn't saying anything about Zed's writing at all. Yeah, now it makes perfect sense."

So admittedly, you get confused for a moment, but then there's a perfectly obvious solution: he's not commenting on the linked article, but is offering advice in the form of criticism on what generally goes wrong with these projects. If you don't see that solution and don't go for that interpretation, I think it means you fail to consider the option that someone is just being clumsy at being helpful. So it's another instance of Hanlon's razor: don't attribute to malice what could equally well be explained by stupidity (which is of course much too strong a term for an awkwardly phrased anwer).

BTW, it's not right that your comments are being downvoted.