useful post not bring merit for me also,usually they give merit if doing good service like in "service" board. There is so much merit to grab.
I recall seeing 2-3 threads where few senior members were giving merits away - anyone with decent quality and constructive posting history could apply and get rewarded.
Youve barely being posting for just under two weeks. I took nearly two months to get my first merit ... Senior members and merit sources do come to the Beginners & Help board and read through posts, but you need to stand-out a bit to be noticed through your posts. Its way better to post a low amount of posts but putting thought into them, than quick one or two lined posts which are similar to every other post on the thread.
By the way, services is not a great place for merit Id say. Merit is also not grabbable, but earnable.