I think that a lot of people were probably doing then the same thing that they are doing today, abusing it. People always seem to think that if 200mg's works fine, then 400 must work better, and if 400 has these types of results, then 600 must be the shit, then some one ends up dead and the drug not the person get's the blame.
Yes DNP can kill you but so can cold medicine, alcohol and hell even steriods. Most of the studies that I have ever read about dnp, they seldom exceeded 200 mg's no matter how big the subject's were. If more people educated themselves and used things in moderation, we wouldn't have to worry about stuff getting banned. DNP is the best weight loss drug hands down that I have ever used, and at 200mg's per day you dont even realize that you are on it. Moderation and education is the key.