country/Messenger/Blockchain Business
Japan > Line > Linkchain
Korea > Kakao > Klaytn(operated by Ground X)
China > WeChat >

?

Seriously, there is nothing wrong in integrating blockchain as a technology into operations because its like an upgrade of software that would make process faster and be reliable in terms of data integrity. And I am equally happy because it shows that businesses are beginning to trust the technology but that should not be interpreted as an adoption of bitcoin or any currency that runs on the on the blockchain.