The truth is slightly different. There are several domains around cashu as there are several domains around nostr. I pointed http://cashu.cash which was an idea that I had and bought. Calle then made accusations of me squatting it, and various threats to extort it. I simply said that it was not in my current plans, given the hostile reaction. He then banned me from the chat room. Quite ridiculous really. He already has a home page. Each to their own.