The Chinese governement wants BTC
<Trollscience>
Ban Bitcoin to induce a panic sell.
Wait for chinese whales and all weak hands in the world to cash out making an all time low.
Buy bitcoins with taxpayers money.
Then say well it's not illegal anymore.
Wait till BTC goes "TO DA MOON!!!" again
Sell BTC
... repeat cycle...
INFINITE MONEYS!!!
</Trollscience>