Where did all the Korean forum traffic go?

dashcloud thought this was worth mentioning said

As someone who remembers the dawn of the speaker dock era, one of the changes that came with that was a big forum presence by Korean speakers- first just users, then the small army of Meh Korean support staff to handle all the requests by those members.

Except for a couple of comments, the Korean members & support staff don't post anymore (excepting @galmaegi, who has an official flask, rather than the Korean support staff badge).
I still see Korean traffic top the referrer chart most days, so they still come here, but none of them post any more.