Pragmatically, twitter style system requires a large networked userbase to be useful for most of the population, otherwise people are tooting into the void in mastodon. So even if I have to work with some soulless corporations to get there I think it’s a net positive. For lemmy i don’t think threads matters much.
That’s not really how currencies work. They are not just something arbitrary, they are a thing people trade which has value formed by supply and demand. People buy dollars to be able to buy things that are sold in dollars. Same goes for other currencies.
What would be the demand for UN currency? What can you buy with it? How would the price be determined?
The idea that USA somehow hugely benefits from having so much international trade done in dollars is also a bit weak. It does give them some international clout but that’s about it. There are some very complicated things relating to trade balances involved when your currency is the global reserve currency.
Unfortunately, realistically speaking there are no users here to suck. In a few days of existence threads already grew ten times bigger than all the fediverse combined.