To “like” or not to “like”?

It has been suggested that we add to this blog the ability to register “likes” and “dislikes,” thumbs up or thumbs down on comments, with tabulation of the responses.  Other blogs do this, and something like it is a fixture of Facebook.

The reasoning is that this would give “lurkers” the ability to participate by registering their responses to other people’s comments.  It would also add to the sense of community.  Then again, there is the BAD part of communities; namely, the exertion of a peer pressure that lends itself to conformity and group think.  We wouldn’t want that here.

What do you think?  Would this add another dimension to our conversations here?  Or would it be a detraction and a distraction?  Would it make for more and better discussion, or less?