Basically the person who started it was only wanting a way to clear his writer's block, so he posted a little blurb of a Choose-Your-Own-Adventure type of story. It would be interactive, where he would respond to commands given by other forum-goers and write the story as he went.
It turned into something absolutely epic, and I cannot stress how much everyone should read it! Luckily he compiled the entire thing on a website so you don't have to wade through the forum pages for everything. He writes the commands that others gave like:
>Travel east
And so on and so forth.
The main character is an Orc Hunter too.

http://www.thelittlestmurloc.com/index. ... &Itemid=17
It's a long story, but as I said totally worth it. It's divided into parts which are listed on the left-hand sidebar.
My favourite aspect is that the writer is very talented and has a knack for witty humor and the ability to draw you into the story. It's extremely well written.