You could say the same about ethical theories too. They all have a way of explaining what they would do when confronted with a runaway trolley or some silly thi

You could say the same about ethical theories too. They all have a way of explaining what they would do when confronted with a runaway trolley or some silly thing like that. The fact that all political ideologies have a way of explaining why they would get in a bus queue just shows that asking someone about why they line up for a bus is a good way to find out about how they think about the world politically. It's just using a simple example to illustrate how anarchists make sense of the world. There are many people who (understandably) think that they don't live their life in an "anarchist" way, and this article is just showing people that there is probably a lot about their life which is consistent with anarchism. There is probably also much which is consistent with the principles of other ideologies, but anarchism is one of the least understood, so a simple exercise like this can be informative. [That being said, as something of an anarchist, I don't share the Graeber's conception of anarchism but that's another issue.]