If there weren't thousands of young sheep flocking to public internet forums asking where to get steroids, we wouldn't need such a typical answer.
Most people don't know what the fuck they're doing.
The more idiots in the scene, the riskier it is for the rest of us.
You can easily fuck yourself up by self-administering illegal injectable hormones.
The "natural potential" phrase is echoed because most new sheep to the scene want to start injecting potentially dangerous drugs before they even know how to work out.
The key here, if you haven't figured it out yet, is
harm prevention.
One person telling a bunch of 150 pound kids to start taking steroids makes the rest of us look bad. And we really,
really don't like a few rogue idiots making us look bad. Comprende?