>Was it used by China, by the candidate, or by romainians?

I think the allegation, implied rather than stated in this case, is that it is not predominantly any of those, but that it is predominantly the Russian state.

Which would serve as an example that it's able to be mobilized, even weaponized, at the behest of state actors. China would not necessarily be culpable under this interpretation of this particular example, but it illustrates that they could exercise that same mechanism.