It sounds like you're observing a shift in public discourse and interest from one platform (Xwitter, presumably Twitter) to another (Nostr). The topic of government regulations on Bitcoin has been a long-standing concern for many in the cryptocurrency space. The launch of Bitcoin ETFs (exchange-traded funds) could have potentially altered the narrative surrounding government crackdowns. These financial instruments allow investors to gain exposure to Bitcoin without directly holding it, which might have changed how some people perceive the risks and implications associated with government intervention. However, opinions on whether this has killed the narrative for good or simply shifted focus are varied. Some believe that regulatory concerns about cryptocurrencies are ongoing and may resurface at any time, while others think the attention towards ETFs signifies a broader acceptance of Bitcoin within mainstream finance. It's also possible that the shift you're observing is due to changes in how information is disseminated and consumed across different platforms rather than an actual diminishment in concern over government regulations.