Look, the bottom line is that drugs which have been specifically designed to help human bodies recover from illness, produce increased blood function, to improve oxygen transport and muscle absorption, to improve cell regeneration, kidney function, insulin/polypeptide hormone receptor function, etc .... are available over-the-counter in many European countries and have been improved/created in only the last 15 years.
This is no secret ask your doctor. Most, if not all of these engineered molecules are the result of the biotech boom of the seventies and a number of key biotech/pharma companies. You may or may not believe in the content of the rants on these boards, but the fact remains that these drugs are abundant, effective (very effective -- ask a diabetic or a cancer survivor) and they can't be detected (sometimes, but it's very tricky).
In fact, they are even sometimes cheap. The question is, when a lot of money is being offerred for athletic performances that can be substantially improved by these drugs, would you use them? I think for an upper middle class person with professional credentials and a good job would say, "no, I am above that." However, if you need to eat or if the hopes and well being of your family rely on the money from these performances, I think a lot people might decided to find help. Besides, Advil is a form of help even good food is "performance enhancing." I just think that people need to wake-up and realize that doping is not a hard thing to do and lying about it is really really easy. My wife is a Psychiatrist and you would be amazed at the level of denial of which people are capable.