[textminer]

There's a functional and chemical different between the amphetamine salts in popular ADD drugs and methamphetamine (namely, a methyl group.)

[lolwutf]

This isn't what the original commenter said!

Reread and realize he's talking about the subjective difference.

[throwaway0094]

It isn't now. It has been edited from the original.

[throwaway0094]

But perhaps more importantly, not a big subjective difference ;-).