Thread:Shabook/@comment-2041242-20140522214727/@comment-112155-20140522215234

It just reduces the number of bits used in the page.

There are two ways to make a reference

1- MOVIE 

2- < ref name = "M" > MOVIE 

If you use the second one, next time you want to make a reference to the movie, instead of using the full < ref name = "M" > MOVIE , you can just write   to reduce the number of bits (characters) used in a page. It's particularly useful in long pages like these