I have to disagree here. If you simply just hit a "like" button your really not contributing to the post at hand, and if your "dislike" something again your really not adding to the thread.
There already is a "button" you can give members credit and write why your doing it, it's nice to see on your UCP that someone has added a comment and have you a little green biz due the fact that maybe you really helped them out in a situation.
I don't think a "like" button will add anything to the already amazing family forum we have now further more I don't feel a "dislike" option will offer anything other then someone hiding behind a "status" rather then responding to the thread.
If you don't like something don't comment, if you disagree well then by all means comment, but in a civil mature way. If you like something then +1 it and comment as to why you agree!
The old saying goes here in my honest opinion. If it ain't broke why fix it.
This isn't FACEBOOK, this is a family oriented forum with many many knowledgable members eager to help others. Like or dislike what make a hill of beans IMHO
This is just my opinion of course like it or not
Oh wait.. No button, I guess your forced to respond or not....