@Helena the thread you highlighted is a comparison of posts in each subsection but not the merits.
The DdmrDdmr's "Bitcointalk merit Dashboard" was already suggested by @Lafu. It is why I suggested this one because, in the Title 4 in the thread, you will find the "Merit per post Ratio", a different approach.
4. Merit per Post RatioWith the previous data, we can derive the average merit per post for all forum Subsections. This may be useful to compare how easy/difficult it is to get merited in one section vs another.
The ratio is constructed simply by dividing the total number of posts by the total sMerits awarded to posts in the section for a given period of time (6 month; last month).
Now obviously this is not the probability of getting merit on a given post or section (as it mixed all sorts of posts with no filter), but from a macro perspective, it could allow us to compare sections based on this indicator.
For example, the Spanish Local ratio is now of 0,033, while the Italian is 0,065 and the Portuguese 0,036. This means that both the Spanish board and the Portuguese board have the same ratio of merit per post, while the Italian is nearly double. Looking further at the data on the table, the Spanish board made nearly twice as many posts as the Italian last month, and got nearly the same amount of merit (thus the ratio is half of the Italian board). Italian Posting and Portuguese are alike though in volume, but ratio is quite different between them.
This has to be taken with care, since it does not account for quality of the posts, how many are spam, etc. It is at least a curious exercise to do.
You will see a conversation we had about what's the most merited board if you read the whole thread.