Wishes on the Wall

I think wall wisher is very useful for discussing questions that one has dificulty in. It also allows one to share one's point of view on a certain subject. Although wall wisher is very useful it has its limitations, such as only allowing 160 characters in one sticky. Wall wisher can also be used to ask other students (who are in the same CCA group) questions on CCA annoucements. Like if one needs to know something about a CCA annoucement, one can just build a wall asking other students.