1. I never share listings.
2. I keep it light and funny.
3. I talk about real estate, but never SELL on there. I share stories, laughs, etc.
My business page hasn't produced much business at all. A few leads here and there, but nothing solid. Good luck to you!
I get to post things about my family or pictures on my personal page but I try to keep my business page to listings, blog links, information and a "funny" post. I find that you post too information and it definitely gets less exposure than a comic or funny fact. People appear to still appreciate facebook for lighthearted entertainment for the most part.
I maintain multiple accounts, and make diverse posts on each. I also maintain more than 30 Facebook pages personally, because of involvements i multiple communities, and to be able to add more and more friends and likes. When I attend meetings or events in different parts of town, I bring that up on the community pages to let people know I was there. I give detailed and regular restaurant reviews, movie reviews, and book reviews, and am on several groups editing or coauthoring books, myself.
Every second is accounted for via extreme time blocking. I use road time with a smart phone to manage tasks, and record thoughts, which I capture using speech to text. I am also nearly completely paperless.
I'm not seeing the problems you're mentioning. Perhaps you've friended yourself? Or, you've setup your personal FB page with Trulia?