For trust score feature, you can refer Stack Overflow
Page following is the best feature.
But, I believe, it should be kept separate, like.. add another tab where all the pages (followed by a user) post can be tracked.
It becomes clumsy to handle every post and notification in the 'Latest' tab. I unfollowed all the pages after getting overloaded with lots of posts (factly, quiz etc.) every day. This is what I believe restricts users to follow these pages.