I love the kudos because it is an opportunity to offer appreciation for a fic that I'm not going to comment on but enjoyed. I'll still comment when so inspired but kudos are definitely not taking away from my potential comments. Perhaps that is not true for the people who don't like the kudos. Perhaps they are replacing their commenting with kudos. *shrugs* I don't know. My behavior with commenting hasn't changed. I just now have a new tool to show my appreciation.