Q: Why do we keep seeing reports of some central banks led by the People's Bank of China buying gold, while the U.S. central bank, the Federal Reserve, and the Treasury do not purchase and increase their gold reserves?
A: The U.S. gold reserves were sold off cleanly at an average price of $1250 during the battle with China’s 'Aunties' over a decade ago, including gold stored in the U.S. from other countries. Since then, gold has never dropped to the $800 level that the U.S. hoped to buy back at; the market hasn’t given the U.S. any such opportunity. Later, gold continued to rise, and of course, the U.S. was unwilling to buy back at high prices. So this matter has basically been shelved, although it is possible that they secretly bought some at high prices.
The average cost of gold reserves held by the Chinese central bank is basically at $1250, and even if they continue to sweep the spot market up to $3500, it won’t cost much, and the average cost still won’t rise significantly. This gold is meant to counter financial hegemony in the future.
As a trade-off, China expelled private Bitcoin, allowing the Americans to control Bitcoin.
Now, assuming that the U.S. is secretly buying gold, they would certainly keep it confidential. If the world's people knew that the Americans were dumping dollars and hoarding gold, Americans themselves wouldn’t trust the dollar, leading to a collapse of the dollar and American real estate overnight.