This past week it was reported that the hacktivist collective known as Anonymous claimed credit for taking offline over 40 websites used for sharing pedophilia — and for exposing the names and identifying information of more than 1500 alleged pedophiles that had been using the sites.
But the actual list is of user aliases, not of personal names.
Not only are pædophiles not being exposed here, but non-pædophiles who've had the misfortune of pædophiles' using the same aliases (by chance or from malice) are going to come under suspicion by those who think that they recognize them on this list.
Further, if agents of law enforcement were themselves working to track-down the actual legal identities of the pædophiles, their investigation has now been severely compromised, possibly fatally so.
Once again, Anonymous has done less good than they have led the gullible to believe, and have caused more damage than they have acknowledged.