In Japan and South Korea, the centre of social gravity is not a feed — it is the messenger. LINE (dominant in Japan, plus Taiwan and Thailand) and KakaoTalk (South Korea's default) evolved from chat apps into ecosystems with payments, games, news and creator channels.
How audiences are measured
- Official accounts: brands and creators accumulate friends/followers who receive broadcasts — the closest analogue to a follower count, and the number that matters commercially.
- Message-first reach: a broadcast lands in the same inbox as family chats, so open rates dwarf typical feed reach — with expectations of restraint to match.
- Sticker culture: on LINE especially, creator-made stickers are both a revenue stream and a popularity metric of their own.
The lesson for everyone else
These ecosystems prove the same point as Telegram broadcasting: direct-to-inbox audiences are the most reliable distribution in social media. Feeds decide who sees you; messengers deliver. The global mainstream landscape is mapped in the biggest platforms guide.