fact 1
engagement is always seeing as a value by potential investors
fact 2
There are no single unit for measuring user engagement. There are clicks, votes, social shares, time on page
Question
How much particular engagement type is worth on the market (in eyes of the investors)? I am not an experts in this area, but this for sure could be described with few numbers
Conclusion
We should measure all those engagement types and compare among types of posts, to make sure, that our hypothesis is correct. Then we can with about taking actions.