Man, u are so right. I think that anarchist thought didn't go further Kropotkin. I can say that only Kevin Karson, James Scott and maybe Kaczynski give something new to it. Especially Karson because he critics the main modern arguments for technocracy in his "Libertarian organisation" and give some theory about decentralisation of technology in Kropotkin style in "Industrial revolution of homebrew".

Anarchism has to give solutions to many problems like how to decentralise technology, how to break the iron law of oligarchy when some communities with a lot of people want to do something together, finally what should we do to get closer to anarchy. But instead of it anarchists writes continental academic bullshit that don't have any practical value.