I’ll give this a try: Focus on users photos and text posts. Make it hard to share news and articles. Perhaps a critical thinking “captcha”. Maybe you have to

I’ll give this a try: Focus on users photos and text posts. Make it hard to share news and articles. Perhaps a critical thinking “captcha”. Maybe you have to write >50 words on why you’re sharing posted with the link? Maybe limit to two articles a week. Perhaps your friends could have an anonymous way to indicate that the stuff you’re posting is politically offensive or just obnoxious. And obviously no filtering. Everything is chronological. (User directed filtering of what they’re shown would be encouraged though.)