So you propose we move from one fiat I can hold in my hand to a different fiat that I can no longer hold in my hand.
You don’t know what fiat means. Learn about money, and the technology behind before having such a strong opinion.
I’m not saying crypto talk should be explicitly banned here, but should at least be limited to the context in which it is applicable to the topic.
That sounds appropriate. Cryptocurrencies, when considered without the layers of misunderstanding and propaganda could be a useful tool in a transition to a more sustainable future similar to other imperfect but still at least temporarily useful technologies we might not ultimately want in a solarpunk future such as electric cars or tall buildings with trees all over them.