AFIAK the like/dislike count doesn't do much except give you an idea about what you've been doing (I've tried altering these values in the past with no noticeable effect). (the only exception that I know of is with Emma for getting her to switch to the sexier outfit)Nope, I definitely picked 3. I almost always picked the most asshole lines in the hole playthru.
EDIT: I do think I actually was nicer to her then I usually would be trying to get her to go to conference. So maybe it's I don't have enough dislikes, but I also can't see to get any more without console or hacking save.
I normally have a million likes with Clair because I spam the best meal for a few days (with an autoclicker) in the hopes that it will matter. So it definitely isn't because of your dislike count.
PS, using the reply button in the bottom right of a post, means the person you reply to is quoted and gets a notification that someone has responded to their post.