I was for not displaying points initially, but after a few days of using the site in this way I'm for displaying the points again. The strongest reasons are:
1) It is harder to scan for good content.
2) Even if I want to read everything, when my knowledge about something is too weak to evaluate the real value of a comment, I can no longer use the wisdom of the crowd to make an idea.
3) Sometimes to resonate with a comment like a question like "Please can you point me to the source code?" the best thing to do is to upvote, so that it is easy for people willing to reply to evaluate if the effort is forth it. There are many instances of this case.
So all in all it was better with points IMHO even if there are advantages without points.
1) It is harder to scan for good content. 2) Even if I want to read everything, when my knowledge about something is too weak to evaluate the real value of a comment, I can no longer use the wisdom of the crowd to make an idea. 3) Sometimes to resonate with a comment like a question like "Please can you point me to the source code?" the best thing to do is to upvote, so that it is easy for people willing to reply to evaluate if the effort is forth it. There are many instances of this case.
So all in all it was better with points IMHO even if there are advantages without points.