Depends on how he was advertising. If he was just saying he was reselling donuts that’s clean. If he was mentioning their trademarked brand KK has the right to shut him down.
Hmmm, still not sure I buy it. If I bought a Craftsman snowblower in 1985 and sold it on Craig’s List in 2018, advertising it as a 1985 Craftsman snowblower, I mentioned a trademark name. I still have done anything wrong or anything that doesn’t happen a million times a day. I’d make the same argument for reselling a car, gun, appliance, whatever. I still want to understand how this KK case is any different.