Disclaimer: haven't been on Facebook for years, mainly because I was pissed at all those stupid games and surveys at the time.
The problem with simply providing a trust appreciation is that you continue to encourage low-value social behaviour. If you want to solve the problem, I think you should try to promote critical thinking.
Why not simply de-advantage the news and concentrate on social aspects? Simply put more emphasis on Original Content created by your "friends", not re-shares (no social added value, as the cost for creation was low) or simple link sharing (same thing, if you don't integrate a small comment or analysis, it has no social added value).
The problem with simply providing a trust appreciation is that you continue to encourage low-value social behaviour. If you want to solve the problem, I think you should try to promote critical thinking.
Why not simply de-advantage the news and concentrate on social aspects? Simply put more emphasis on Original Content created by your "friends", not re-shares (no social added value, as the cost for creation was low) or simple link sharing (same thing, if you don't integrate a small comment or analysis, it has no social added value).