Many of us here don't know on what ground those local boards we find inactive now were created before. What gave rise to their creation?
I'm not sure that why all those local boards were created but I guess it was somehow inspired by Bitcointalk, however there's nothing wrong in having those local boards as in future we may see members of those local boards joining this forum and generating activity on those boards.
As of now those board should stay there or they should be locked so no spammer can create spam threads on those boards.
For me it too early to start saying that those local boards are not active like others, and we should not use the activness of our own local board to judge other local boards activities, for me the forum is still very young at development and at thay we may likely have done well by creating and having those local boards and waiting for those from those inactive localboard to pick their bearing in the future.
Right to say that the idea is already practiced on bitcointalk.org and we can see how helpful having a localboard have been to mostly newbies who can feel more free asking questions from those he she is from the same local with, so let give this forum sometime to pick up.