Comment by jeroenhd

That's just a variant of a botnet that the users are willingly joining. Someone well-intentioned should probably redirect those IP addresses to a "you are part of a botnet" page just in case they find the website on a site like HN and don't know what their family members are up to.

Easiest way to deal with them is just to block them regardless, because the probability that someone who knows what to do about this software and why it's bad will read any particularly botnetted website are close to zero.