Originally posted by Nameless:

Boars only breed if you are near them (their model is loaded)

Originally posted by Faceplant8:

There are many ways to work around structural integrity

Yes i know, but i try to build without cheese you cant be sure the devs will not patch this out and destroy that base

Sure. All of mistlands could change, which would probably cause some issues for my treehouse. :-)

Using dirt/terrain, of course, is standard practice, so I don't see that changing, but I guess, for what you're doing, it's probably best to just assume you're building on flat ground.