This reminds me of the spider in Bruce Sterling's novel Distractions which crawled the net for people saying bad things about its owner. When they had crossed i

This reminds me of the spider in Bruce Sterling's novel Distractions which crawled the net for people saying bad things about its owner. When they had crossed its threshold their names got posted on an enemies list website, which was read by nutcase supporters, who then tended to go out and try to assassinate the listees.