Indonesian (22,8k posts; 20,1K of them in Altcoins), German (20,9K posts; 10,8K of them in Altcoins), French (9,6K posts; 2,2k of them in Altcoins), Italian (7K posts; 1,4K of them in Altcoins), Spanish(*) (3,1K; 1,3K of them in Altcoins), Portuguese (4,6K posts; 1,2K of them in Altcoins), Croatian (3,8K posts; 1,7K of them in Altcoins), Dutch (0,7K; 0,6K of them in Altcoins).
By looking at the data you provided, Spanish board has less posts than portuguese and more than the double merit earned (1122 merit Spanish x 522 merit Portuguese)
Indonesian, another example, has only 5x more posts but 10x more merit, and so on.
I agree that there is a relation between number of posts and merit, but that's not a perfect relation.
I would like to see
merit source x number of posts data, this is the issue here.
I didn't see Arabic board in your stats. I believe that's another board with great amounts of merit circulating