I've read couple of posts with the similar review about quality content. It did hit me hard to stop thinking what kind of content people would like to read and would upvote for.

As you said, writing about what you really know, putting the idea and opinion together does make a post way better.

One thing I kinda see ( as newcomer in steemit) , there are people who get low vote, for the content they think is good enough to be voted for, and instead of evaluating our own content we insist that ours is a good post.

Anyway..thanks for the advice. Let's work harder to make a good content, and useful for others too :)