In a sense, self citation can reflect the sequence of an ongoing research or project.. for example... A PhD student can publish a review paper, then a research in progress paper whereby he identifies the problem and hypothses development... etc, So it is logical to cite these two papers when he write the final results' paper...
On the other hand... If most of your work is being cited by your self, does it show lack of impact?
Your comments and opinions are highly aprreciated