There are those that find a niche, and then there are those that attract readers because of their personality, style in writing, whatever it might be.
There is no perfect recipe, so i find that its best to just be you.
I could just post music all day, but i dont, i like to yell at things i disagree with. haha. Thats me. :D
I know you dont "worry" about having diverse content, but really, dont worry. hehe. :P