anyway since the game does not have "climbing" or levitating which is not a big deal, I would love to see rope arrows become a part of the world of Skyrim.
look at thief 1,2 and dark messiah, rope arrows worked in great ways and where not prone to abuse or over powered-ness.
What could rope arrows do:
1- they are fun of course.
2- Its easy to control where the player can or can't use them (only on wooden surfaces....etc)
3- Hundreds of extra dungeon and trap ideas, not to mention puzzle potential and secret loot .
4- A plus for Thief character types
5- lore friendly
6- Easy to implement (some what)