The data the SK gathers could provide interesting behavioral information to interested parties, although given how different SK trading behavior is compared to other cultures, I don't think that data will provide useful information outside of SK. In fact, the data would be biased as decentralized exchanges, privacy coins like monero, and other tools to circumvent direct surveillance will mean that the behavior data will be GIGO.

They only thing it solves is tracking money going directly from bank accounts to exchanges, which may allow SK central bank to keep their Forex values in check.

I welcome any news that causes unrest in the crypto markets, because every time some "bad" news is pushed out, we all take it a little less seriously each time, which dampens the media's ability to attack the crypto markets and manipulate them.