She writes about Tether basically injecting non-existent money into Bitcoin to prop the price up after it had dropped to ~ $4000 in March 2020. She also claims

She writes about Tether basically injecting non-existent money into Bitcoin to prop the price up after it had dropped to ~ $4000 in March 2020. She also claims that by late 2020, miners stopped selling Bitcoins and instead .. > They took out loans, which allowed them to buy their equipment and hold their bitcoins. Marathon even bought additional bitcoins! > Borrowing against mined bitcoins, and not selling them, reduced selling pressure on bitcoin’s price in dollars. US-based miners used this model heavily from July 2021 onward