When I read a topic I just read the hero member and legendary's posts, as you know in a large topic other's post only waste time.
Now I am a jr member ,who read my posts to merit me?
Even good and high quality posts can't improve my position and people like me , and I am a jr member with 100 posts.
Merit system only disappointed me and people like me from being a hero member or even a member.
You need to analyze some things before posting with this frequency:
1) If you are not getting merits, what do you want to achieve with so many posts ?
2) You should focus more on quality aspect than quantity.
Finally, do not loose hope. Rome was not built in a day.