LOL! Just yesterday (here) we were wondering how China was going to unload T-bills. Now we find out they're dumping them on themselves!
Actually if you think about it if they do what you’re laughing at in the right order, like first publicly announce a dump of treasuries (price goes down) then secretely buy them while they’re down. Later publicly announce that they’re buying again (price goes back up) and voila the people that bought secretely have a tidy gain.
I would not underestimate them. Wouldn’t it be interesting to know who’s involved in the secret buying??