Yes but the article is not about crises and disasters... it's about people sharing their work with the world, and the observation that it's much easier to comment and criticize on something without knowing the difficulties in building or creating it than it is to actually set off and attempt to build the thing. What I got from the article was that if you have actually given it a shot your feedback is more valuable and you probably ought comment because you'll have something to say that will help the builder. Maybe we are looking at different uses of the term "comment." Yes, naturally anything anyone says in response or as a reaction is a "comment," but I think the author was coming from a place of sharing one's work on the internet, he pretty much said as much in the article.