Disqus did the same thing, and other sites removed the thumbs down option all together, which is even worse. It really distorts opinions. The commenter only sees thumbs up and never sees how controversial their comment may be because most people wont take the time to respond with a comment.
I suspect it comes from the pampered view not to hurt anyone's feelings, but it's sold to us as a way to stimulate conversation (which is false).
You cannot trust anything this government says. Digital Privacy is doublespeak for invasion of privacy. It's just like the their "Fair elections Act" which actually goes against anything fair, and strips independent oversight, introduces spending loop-holes, adds party appointed workers and some other things too.
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