That's what I find so weird about most criticisms of Anarchism. Anarchists like nothing more than building systems and methods, then seeing how they work or could be improved. The only way to differentiate different forms of anarchism is through the systems they think would be most effective, and the methods they think would be most effective to bring them about.

It's just a lot harder to build peer-to-peer systems than centralized ones, although peer-to-peer systems are ultimately the most resilient.