Really? Really?

Does no one really understand how things work? Or does not knowing make it ok? If you inbreed sib to sib it is much worse than line breeding. Secondly if you inbreed or line breed 2-4 or 20 generations and then sell any of the offspring. Someone who gets one of the babies later on down the line, may in turn do the same thing because "it's cool, ok, and widely acceptable" to do. Now the further down the line you go it now goes from being inbred not just 2-4 or 20 but now its 20-40 or 200 generations.

Just saying and trying to make a point.

Once again. Inbreeding is not acceptable (or at least shouldn't be) and shouldn't be practiced. Line breeding should only be done to prove out a trait.