In RL you'd be able to catch and identify the thief. Digital... a bit different I'm afraid. Online - you'll struggle to prove with 100% certainty who did it. Anything else apart from proof is propaganda/assumptions. Not facts.
What makes you think those accounts were really from China and not from Australia, Taiwan or even Iran? Anyone can do it with a tiny botnet/a few ssh's into consumer routers or by buying less popular browser addons.
My point was this is not news worthy by any measure. It's just bashing for the sake of bashing. If you want to make it news worthy, tell me you indentified 1k or 2 of aged twitter accounts that spwe propaganda. Not 1 week accounts.