Well, they keep upping the paranoia, don't they? Of course, the WT despises the Internet: They even admit why--no rules or restrictions on what can be said and by whom AND it's freely available to anybody anywhere. The most fantastic and powerful aspect of the Web is the freedom of information, which is critically dangerous to high control groups.
So they demonize it even further by using that rather clever illustration to make the internet synonymous with Satan. That's exactly the message being sent. If you don't know every last detail about what you read on the internet, the implication is, then it's a lie from Satan. Never mind the fact that just because something can't be verified, doesn't mean it's automatically wrong. But once a JW reads something (critical of the WT) on the internet, because that medium is now linked with Satan, that information is tainted. If corroborating evidence is encountered from another source, perhaps reading the same thing in the news, let's say, he or she will still be disinclined to believe it because of its original association. In a way, the WT is "vaccinating" JWs against anything they read on the internet.
I would say that this extremely paranoid article is more evidence that the Boys in Brooklyn are getting more and more nervous about the impact of cyberspace, probably thanks to sites like JWN. Yay JWN!!
Oh, yes, and I want to add that's it's an absolute HOOT that by their standards listed in the article, EVERYTHING written by the WT would automatically be worthy of suspect and hence rejected!!! They are the WORST about citing credible sources or using up-to-date information or identifying who wrote anything or having a HUGE agenda and bias in their writing.