The majority of GDKP runs are being initiated by extremely large international, black market collectives who employ thousands of people to infiltrate video games. Their goal is to make the gameplay experience as unfair and unwelcoming as possible in attempt to normalize behaviors that violate both written and unwritten rules within gaming. This can only be accomplished through sabotage of organic raiding and gameplay to make the subscriber experience as unpleasant as possible, thus forcing them into new patterns of play. This is a widely studied topic that is a major issue for not only GAMERS but game developers.
Click the below link and use as much of Blizzards own terminology when you file a report of the incident as “Organized In-Game Services”. Blizzard seemingly does not take this issue serious enough to be more proactive with the enforcement of their policies. Until they are confronted with a large enough number of their paying population, you can expect more of the same.
Personally, I feel blocking proxi’s is the only solution until the next new wave of game breaking collectives show up.