I'm not saying cheating is "o.k." I'm saying that I am hesitant to pull Anderson from the GOAT talks based off that one test when over the last 2-3 years everyone around the sport has come out and stated that PED use in the UFC is chronic and just about everyone is on something. PED use is a blight on the modern sport landscape, across the spectrum. The UFC is still young and whereas in some other sports PED use might be less, in MMA, apparently PED use is rampant.
You know, there was a time on Sherdog when even insinuating a fighter was on the gear would get you banned. Then we had all these PED accusations start flying and GSP even decided to step away after he repeatedly asked the UFC to step up testing and clean up its act. So you know what happened? We got a thousand PED threads on Sherdog and even ones specifically calling out GSP as a cheat who never got caught. Same thing with Fedor. Go back to 2006 on this message board and if you so much as whispered Fedor was juicing you would be banned on the spot. Now its pretty well known that Pride didn't give a shit who juiced.
Anderson cheated but are you certain for his entire career? Should his legacy be removed from the records? See that is another problem. Should we disregard Anderson's 16 consecutive UFC wins record? How about his 12 consecutive title defenses?