A like button would be distracting.
When I, for example, watch a television debate, I always find it awful to hear lots of people cheering every time their opinion is expressed. That is one reason why we don't allow it on 'official' pre-election debates on TV. It is distracting, and people tend to agree with the loudest cheering crowd out of fear that they may have the 'wrong' opinion. Like Jay said: It would give an elitist vibe.







