Dude you really need to chill the f out , people have STRONG feelings about this drug because its destroyed them or a family member , i try not to sit upon my PRESCRIPTION throne & judge guys using street dope , my scripts dont make me a better person .
Fyi im well informed about H , here's an interesting tid bit that fits your example , pure Heroin is used as medicine in hospitals & doctors in the UK & other countries under the trade name Diamorphine & its long term effect is less addictive than other opiates such as Oxycodone.
Just chill bro , everybody is allowed an opinion & nobody is wrong .
The shit they cut dope with on top of the life a street addict lives is what takes its toll on destroying their appearance.