You summed it up very well The Pharmacist, I originally planned to edit your words into my post, but I realized that it was a bit redundant after I finished editing. I regard my post as topic

Yes, just like you said. Frequent gifting of merit source merit can easily be regarded as a favor and kickback.

But many merit source posts are really good (this is why they became merit sources), so it's not just to please, sometimes your posts are really worthwhile.