Hydra made a business move to clean up their network and traffic. They dumped the same people that anyone should dump. Black hat, click fraud, etc. etc.. This stuff just doesn't go unseen anymore. Networks have to pay attention to the quality of traffic, it's either dump the garbage, or close shop.
I think that
Hydra made a good decision for the future of their business, I have always liked
Hydra network and I think that this speaks volumes about their devotion to customer service.