That is one reason I like when you can give different responses to a post.  When someone posts that something terrible happened or points our the evils being perpetrated by our government, I don't want to click a heart or a like, but I agree and think the post is important.  I fret on whether I should "like" something so horrible in order to let the poster know that his post is acknowledged. 

 Yeah, zaps and likes aren't enough. Need reactions.