I happened to stroll around Indonesian sub board before, for uhh... a branch of a case I am trying to amicably resolve. Two things that I notice [that I might be wrong, since I am mostly contained on SA, frequently visit Repu, occasionally visit meta, and never to other thread] was that I think local Indonesian are also "self contained" there. I meet usernames I barely recognize [even in gambling board that I visited whenever I got a nudge]. Probably due to language barrier, probably because they are shy to talk publicly, or maybe they prefer to talk with fellow Indonesian, where information from global were conveyed by other handful who active globally.
I think, if their reason of being shy to talk in public is because they're still in "low-tier" rank, a little push will get them to freely interact with other global boards. This would means, a merit source on that local board is even more importanty needed as currently they're severely bottlenecked.
OP, AakZaki, would be a good candidate for merit source, he frequented Indonesian local and global board, so when he has extra sMerit after he merited local, he can distribute these to the global board. Two birds, one stone. AND, he does possess the knowledge of what global board "standardized" as merit-worthy post, so he can slowly raise the quality of Indonesian poster himself. Three birds, one merit source.
Apart from the issue of them getting an additional merit source, this that you have explained above is another reason why they also also need an active moderator that understands the language and behaviour of the forum members from Indonesia very well. I do not really visit other local boards that much, but on some occasions, i have been notified of being mentioned in some of these local boards where i end up not understanding why i was mentioned in the first place because of language barrier. This is leaving me wondering how a board that is active could function properly without a moderator. These boards need moderators that are already familiar to those boards.
Although this is entirely the duty of the forum administrators to decide, I just hope that they see reasons to approve these requests to ensure a balance in boards lacking of both merit sources and moderators.