Cocaine is not banned out of competition, which is why the commission did nothing when he popped for it, which wasn't supposed to be tested for either.
Also, just because people talked about it doesn't make it NOT a rumour. If JBJ had actually hid under the cage for hours to avoid a tester, they would not be taking that lightly and no doubt would have actually investigated. You don't hide from testers in a big gym for hours in this day and age without someone taping it lol
What he does outside of the cage which has nothing to do with fighting, should be just that, nothing to do witht he commission. They sanction fights and do testing, they are however not the morality police. If it is not against their rules, they it should ahve nothing to do with them.