With the economy of internet scale, that ramps up fairly quickly. How many people saw that vandalism? With your local McDonalds, it's probably a few hundred, a thousand on the outside. How many people follow @BurgerKing? It's probably more on the order of millions. Even using a logarithmic scale, there's an arguement to be made for months in prison. The cost of the offsetting advertising campaign? Who knows; They say "There's no such thing as bad publicity", but certainly some money is going to be spent cleaning up this mess; Probably again 2-3 orders of magnitude more than the cleanup of the local franchise.