Experiments merely show that anarchocommunism attracts violence seeking to preserve authority. That is nothing new. Violence has always been the root of hierarchy. Whether it is the abolition of hierarchy or contention between old and new hierarchy, violence has always been the preferred cure and preventive.
Anarchism need not be seen merely as a state of a society. Anarchism can also be seen as a means, a method of collaborating with people. One can see anarchism everywhere in daily life and in struggles that are not specifically for the abolition of states. The root of the many anarchist political ideologies is the thought that a human being is best when she freely associates with her human beings and acts in collaboration with the world. As a method of being, it is useful even to people who care not to get involved in the grand affairs of the world.
Like many ideas and vegetables, the root of anarchism is perhaps its most useful bit.