Those are all really good points, especially that some drugs don't have any mood altering effect on you, as far as you can tell. If I'm coming across as wanting to police people's moods, then I'm not representing myself clearly enough; that's very against how I want my reality to be, I'm very against excess policing and already think that we have to many regulations.
What I am saying is that the users that say it doesn't effect anyone else if they are just using it for their themselves are kind of ignoring the facts-that's just not the case. If we're going to police something, it's going to be actions of course and the reason we have laws against these drugs is because they can clearly cause bad actions to arise out of generally good people, right?
If we're talking about US law then I think that's incorrect. I'm no expert so someone will surely correct me if I'm wrong, but I think steroid legislation was pushed through basically as a political tool. The main argument at the time was their danger to health (with Lyle Alzedo being very vocal about how steroids caused his cancer, even though his doctor disagreed), although I think the rage thing got pushed pretty hard too. The recent witch hunt in congress was just a big, expensive red herring, but that's another matter.
Based on my experience, I don't believe they'll cause bad actions from good people (although I don't really believe in "good people" and "bad people"). The difference I noticed in my own aggression level was pretty slight, but I noticed I was a little quicker to anger when driving. The reports I got from others in my life, however, were 100% positive (since I injected testosterone on a strong HRT dose because of naturally low levels). Everyone commented that I seemed in a better mood and I agree that I was almost all of the time.
Aggression is a factor though, but in order to act on it you'd basically be a "bad person" to start with, or more likely a kid with very little emotional maturity or coping ability who would be prone to lashing out anyway. In truth, I don't think roid rage is the genuine reason for steroid laws, but it's the most marketable one. I've never raged out, never seen anyone rage out irl, and never even heard a real life story of someone raging out. My main objection to steroid use would be potential health consequences, but that's a lot less 'sound-bitey' than the apocryphal 'roid rage.'