You can do this even easier with anabolic steroid (and AAS actually improve recovery capacity). That doesnt mean AAS isnt a very effective tool in an athelte's arsenal.
I agree 100% that beginners should not be using powerful stims all that often.
Ive been training since Im 16. I just started taking stims pre workout since I started grad school, at 23. I use the smallest amount possible to get the beneficial effect. Theres simply no way Im going 10-12 hours at school then coming home and being able to summon 100% effort at the gym. Day after day. Not going to happen. Not the way I lift; of course I could just go through the motions and stay 'fit' but come on, I wouldnt spend a few hundred dollars a year on a gym membership for that.
I use a pre workout powder before I workout. Nothing fancy. Is that what you meant?
And to be clear, I think you underestimate the body's ability to adapt and thus recover from training. You say that you think you can train past your recovery capacity whenever you want. OK. What do stimulants have to do with that? That can be doen with or without stimulants. Just because a pre workout powder is thrown into the mix doesnt automatically force a person to train for 4 hours a day/7 days a week.
You ability to recover depends on how genetics, the program you follow, nutrition and supplementation. Stimulants do not force you to do more work, they just (may) allow you to do better work.