In this case, the
name of the site is sufficient to find it. Referring to it as "The Site Which Must Not Be Named" is a bit too melodramatic for my tastes.
Besides, Demonoid needs invitations to actually get into, so that reduces the likelihood that a random person will get in because of this site. It's also how they avoided getting shut down for so long.
A surprising number of discussions at least touch on something illicit in some wise, and Google's search algorithms are way too good to try and dance around, it's just not a realistic goal.
Even if it were, we're none of us interested in the time, effort, or vitriol needed to police every post at such a level.
Demonoid's return is noteworthy in that it relates to the whole e-book discussion in the area of "piracy" and publisher's fears thereof. MobileRead does a pretty good job, in my humble opinion, of making our condemnation of "piracy" pretty plain.