I think one must first argue why it is a good idea. “It is already being done through back channels” is not an argument I find compelling. In some respects it strikes me as keeping the casino open longer.

it's a bad idea because your money will run out faster, if you just trade 9-5 you can space your losses out

Every institution competes for attention. When you can check twitter 24h, but the stock exchange only for 8 hours (and these 8 hours may not be among your waking hours), that makes twitter feel more real.