You take 3 sting and put them in a row. Rope can be used for a rope fence or something, I think it would be pretty cool. You could only atttach rope to other rope or a fence pole.
it would need WAY more uses. i really would not like a rope fence when i can just have a wooden one. It should be so that you can climb it. say if your exploring a cave and their is a huge drop in front of you. you should be able to right click on the ground near the edge and the rope falls down 5-6 blocks. working just as a portable ladder.
If I was helpful, funny, or you just feel like it, please press the green + button, it's always appreciated.
Or hang it off a a block that has nothing under it. Or To the side of the block to make a rope ladder. . . Oh wait that's a mod.
http://www.minecraftforum.net/topic/253365-173-better-than-wolves-mod-v291-upd-aug-6/
Mostly moved on. May check back a few times a year.