In 10 years of torrenting, I haven't seen an attack quite this bad. As I understand it though, mostly its just something new that people haven't had time to develop adequate countermeasures for. But that's just second hand knowledge, I couldn't go into any specifics. But it would seem that its not just been bit torrent trackers either, perhaps there wasn't much of a motive aside from it could be done, or testing the attack out or something...
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