Sorry if i'm wrong, it's just my opinion...
So, make quality article is not hard at all
Yeah but it's depend on each people opinion. One can see content A is quality, but the othr can see content A is so bad. It's depend on people opinion, interest, knowledge, experience, etc.
So, basically, what I've been saying all along?
Quality is in the eye of the beholder. Ever heard the phrase 'One man's trash is the next man's treasure'? Well, I think that applies to content, too.