Thanks, I do understand how i18n works for plugins. I should have asked if there is a way to do this without having to fork or modify the existing plugin. It seems like the answer is no.
Personally, I think this is a lacking feature of NodeBB.
Is there any plugin can assign "Score" when user post? it more like a reward system, when user submit a post with questions that he/she usually will also assign a "Score" to the post, so, any one who answered the question will gain the "Score". any Plugin or configuration can do that?
Why do you need to assign a score. The builtin system has one score per / post and user.
@Jenkler it's like the bounty system on StackExchange sites.