I hope our local board will be more active. Because to receive more replies to my posts will improve my idea better. First of all, listening to a lot of opinions is a lot of fun.
From your post history, I can guess that you come from Japan or at least speak Japanese. I also know that the Japanese are very hard working so your local merit sources may not be very active. But you are luckier than me, mate. You have a local board and merit sources in your board.
At the moment, I am not sure whether it is better for Merit Source to actively distribute the merit or not,
Not really. Each merit source has his own standards in giving merit. Some tend to hoard their smerit rather than awarding low or average quality post. I'm not sure what your problem is but if you find it hard to earn merit in your local board, then try other English boards.