But who decides what is a quality itself? What is useful to one may be junk to others. It is pretty subjective.
How do you decide what is quality or not? How do you decide whether you like something or not? Of course it is subjective, but the idea is people will get merit for posts that have clearly had some effort put into them, and those writing exclusively mindless drivel or just claiming bounties won't get any or very little, and that's how it should be.
Basically if i want to fish out some Merits, i have to think how others might think or want, not what i really do 
How about you just make posts as normal without even thinking about merit?