yeah. i also agree the fact that they should open Local Board for Vietnamese. in fact, Vietnamese is at top among Asian countries based on the traffic.
Vietnam will be the next big country for Crypto. you have my support!
You sure about that?
https://www.alexa.com/siteinfo/bitcointalk.orgJapan is has the highest number of visitors in Asia, and the next big country for crypto

Anyway, as Hilarious says, there are many abusers (especially low quality posts) coming from Vietnamese users
Unless you Vietnamese can convince Theymos and find trusted member as its moderator, a local sub-forum is a no-go
Low quality post because of the bad English, not because they are spammers or/and ignorance.