INSULIN - A performance enhancing drug?

So I am sure we are all aware of the power of insulin, but there are a lot of people that abuse it. PLease read the link below and let me know some of your thoughts. Do you consider yourself to be under a performance enhancing drug? :)

http://www.trainedbyinsulin.com/1/post/2013/02/insulin-a-performance-enhancing-drug.html

I would say that I'm under a "life enhancing" or "life prolonging" drug. ;-)