You call it abuse. I call it fun of the game. For the same reason mobs became static (it was too fun, or too abused according to others). If something mechanics can be changed. It doesn't make sense that you can't move a fish lying somewhere, and become trapped by apples.
I don't see any problem building a ladder to climb somewhere. It can be nicely RPed. It will give the game much more interesting activities, like an expedition to high BD mountains for example. Or something like construction / artisan work. I don't mind making a makeshift bridge or some custom made house somewhere. If that's too heavy on the server - that's another story. But I don't agree with the abuse argument, which is used to take many good elements away from the game making it more static and dull.