I've just created my Stackoverflow Careers profile and CV.
I found a bug in edit tags area. Follow the steps bellow:
The user clicks on the edit tags link
Then, he decides to remove colobol tag, the only tag in the Dislikes field.
When he clicks on the "x" of cobol tag, the tags from "Likes" are removed, too.
Sure, they don't have to be removed. This must be fixed.