This is another piece of a mosaic that is going to reveal that grey zone warfare by Russia against the west has much larger scope than most people are aware of. The UK National Crime Agency uncovered a huge money laundering enterprise based on the kinds of crime that fly under the national security radar in most places.
See exhibit 8 and such: https://www.justice.gov/opa/media/1366201/dl
Or 10 which specifically talks about Twitter https://www.justice.gov/archives/opa/media/1366191/dl