This is a classic tale of an echo chamber. Sasha is echoing an article from Van Eck. Van Eck is echoing a report from Reuters. Reuters reported unnamed sources that said "Some Russian oil companies are using bitcoin, ether and stablecoins such as Tether to smooth the conversion of Chinese yuan and Indian rupees to Russian roubles" They aren't settling payments in Bitcoin. They aren't invoicing in Bitcoin. They are using a host of things (including probably a lot of Tether) as an intermediary for an FX conversion to ultimately use roubles or rupees or yuan. This isn't "game over for the USD".