I agree with this, there is many Legendary members who did not get not even one merit so far, and some campaigns requiring at least 5 merits, which is too low in my opinion.
Merits have become commodities, people are always looking for a way to bypass the system and if it is possible to earn on it. Buying / selling merits is just one way to get them, but there is not secret that some members use their alt accounts for merit exchange between them.
However in general merits are not moderated, user can give from 1 to 50 merits to any post no matter how post seemed
shitty in the eyes of the one who reads the same post.