I just checked my mail box and saw a bunch of e-mails (most likely brainwahsed teens) accusing me of putting dirt on the great persona of Scooby Do - the natural liar.
Sorry to break it to you but Scooby Do has been juicing for a long, long time.
Yes, I don't have evidence expect my experience. Trust me on this one. Unless you are a complete moron you should be able to tell who is using and who not after a few years of training.
At the same time keep this in mind - There is no evidence that Ronnie Coleman is using either. He must not be using in that case - all supplements, hard work and of course genetics.
This is how natural "bodybuilda" looks like. Sorry to tell you that Santa does not exist but you had to learn it at some point.