It’s been a couple of times now where I simply put a comment under some shared link on fb or g+ without having ever read the actually linked page, that may is an article or some video.
Then, after I commented the post, I actually read/watched it first – which caused me to change my actual „opinion“ concerning that link.
So my idea is now to force users to at least click on the respective link in order to become able to leave a comment. This might reduce all those troll threads where people flame each other without having ever read the actually linked content.
This might increases the chances that those folks who want to comment the content have actually read parts of it before just catching on a bad headline.