Elando:Why when my Fan fic has been out for a day noone has commented yet on other peoples stuff people have commented within an hour of it being released :(
I would say publicity. if you don't advirtise your fan-fic, like in your sig or something, then people are less likely to read it.
reasons that people's fan-fics don't get read:
publicity
originality
length, (or lack thereof.)
grammer, (to a lesser degree.)

carefull... it^ will steal your soul...