Absolutely. I've seen the "results" firsthand and also think I am fairly well educated on the topic. Why, do you have indisputable and scientific proof from at least one reputable source that would change my mind? Or at least some specific examples? lol
Can you tell me one athlete who did not show very visible sign of decline in their performance and appearance after they stopped using? Look at Overeem. He certainly didn't keep all of that muscle he had when he was taking shit and his performance dropped markedly too. It seems like he was taking steroids long enough to show that there are no long term benefits of being on them. Once you are off, those gains and advantages you once had disappear pretty quickly.