In my opinion, blogging is meant to be casual/informal. It should reflect the personality of the blogger.
Some are coming here not to blog, but to make money fast, they don't care how and that's where the problems start.
According to my experience over the years, I have learned that the more you are yourself or post stuff that is relatable to your audience, the more it gets traction.
I can confirm that.
RE: What Should I Write About Today? - Asks The Newbie