This will definitely be interesting. While I think not having comment scores will have a somewhat limiting effect on groupthink voting, it will also probably have a counter-effect on pithy/silly one-liner comments by preventing people from noticing that no matter how humorous or witty the comment might have been it has already gathered as many votes as it deserves. The great karnak predicts a lot more early comments at the first level of two of comment threads being short witticisms that attempts to predict the herd and thereby gather a lot of early upvotes.