Whenever people say something is bad, people just pick other things and say they're worse. People say steroids are bad, other people say tobacco is worse...people say DNP is bad, other people say tylenol is worse...
Let's be real here for a second...DNP is worse than any of them...it's just that fewer people use it. Yes, tylenol kills people sometimes, but there are billions of people using it. Smoking kills people, but after decades and decades of use...it doesn't have the potential to kill someone within a day like DNP does. Alcohol can kill you in a second, but it's easy to educate people on responsible use.
My theory on why some things are legal, and some are illegal all comes down to education. It's easy to tell people, don't drink and drive or you could die...don't smoke or you cold die earlier.
It's alot harder to educate people about responsible use of something like DNP and AAS. It takes a long time to figure out how to use that stuff safely, and alot of people would probably still fuck it up.