While Banksy 's works were inherently illegal Legality , no official complaints were reported Reporting to the police ; most property owners praised Judgment_communication the art and some took Action measures to protect Preventing_or_letting it .

Treating the plan as a blueprint was rejected Agree_or_refuse_to_act , because this was contrary to the tradition of Prussian war planning established by Helmuth von Moltke the Elder , in which military operations were considered to be inherently unpredictable .