How to stop the virtual money?

The decision by the central authorities to limit the use of virtual money got quite some attention. But none of the news articles I have seen went into details on how to do that, most likely because there are no details.
That means most likely that for a long while nothing might happen, as is the case more often when an issue is really difficult to handle.
The same goes for the internet cafes. Not issuing any licenses for new internet cafes does not mean that much when most are illegal anyway.