Consider the growth of muscle tissue vs tendons/ligaments. If you start a steroid cycle without a muscle base, there's a 100% chance you're going to injure yourself because of the rapid strength increase. A lifter who is closer to their genetic potential has built up his strength, muscle and other soft tissues over a length of time and is less likely to suffer a crippling injury. This is a no brainer...
Comparing someone with a wasting disease on roids to a bodybuilder on roids isn't even comparable. I doubt someone with full blown AIDS or the guy wasting away in a wheelchair is going to be squating 5 plates. Steroids are a necessity for them and they'd be lucky if their strength was even at par when using them. A bodybuilder on the other hand is pushing their body past it's furthest limits and needs the proper support around their joints or else permanent damage will occur. Lastly, you're cheating yourself out of future gains by not building a full base.
You would think this ^^^^ would be fucking common sense.
It takes quite a while to get tendons, ligaments ect prepared and conditioned to take a heavy regular beating without steroids.
Not to mention the question wreaks of looking for the drugs to do all the work for you.
Anyone who is new doesn't have a fucking clue how to diet for various goals. Or had any experience with different training styles to know what works for them or how to switch things up properly ect.