I'm not a traditional Anarchist, but an Anarcho-Capitalist (proponent of property rights, opponent of all conscription) and a Cooperative Agorist (Thinks cooperatives and common rules, including ethics, social safety nets etc can be used as a means to replace the state and be opperated in harmony with markets/run on capitalism, without threats)

This post points to the practical reason I'm not a traditional Anarchist, but the differences run much deeper in political theory. Not all traditional Anarchists turn violent.

Traditional Anarchism is a rejection not only of the state as such but also of all currently aquired private property; In extension this means that it's a lot easier to justify smashing a window (or much worse) when you get angry or want to engage in activism.

The term "propaganda of the deed" comes to mind. Its related theories have been used to justify among other things assasination since way back.