I am aware of the legality of using unauthorized access points as I am aware of the forum policy. The WiFi predator it an extended range repeater. I would think that reminding people that it's use on unauthorized networks is illegal is a plus and not a minus.
What you've basically said is that if I post a tutorial on how to make a spear (a legal item) that's just fine, but if I tell someone that it is illegal to kill their neighbor with it then I have broken policy -- are you a lunatic?
Not only that, the policy in question:
"Adult Content/Violence/Illegal Activity: Messages containing sexually oriented/violent/illegal dialogue, images, content, or links to these things will be deleted. Messages with links to or suggesting illegal activity will also be deleted. Posting or linking to any of these could result in a ban." does not apply.
I have just reread the article that I posted and I have found no reference to using unauthorized access points and no reference to encryption cracking. Therefore the link that I posted has no "suggest[ion of] illegal activity" and in fact explicitly states what NOT to do. The link contains only one suggestion on use and that is a connection to a fully public and legal access point being announced as "Free Wireless Internet." In fact, I have found two places (including the one your quoted) where it explicitly states other activities are illegal.
It would seem to me that if it is against forum policy to post illegal activities then posting information that is readily available anyway which includes no instruction on performing illegal activities but does contain warnings of the legality of possible things that could be done with the equipment can only be good.
Further it would seem to me that you did not carefully read the context of the article that I posted and simply profiled the device based on your own bias and to that, sir, I would ask "What have you been doing?"