Really? Thats weird! You actually think that using a product in an unexpected but non-harmful way is immoral?
I think that what you deem as non-harmful could push Apple to take more draconian steps to insure that only its machines are running OS X (as per the licensing). That means that installs will be a bigger pain in the ass, and we could end up with the dreaded "activation" ideas as a way for Apple to protect its bottom line.
It is not unlike some software that does not check the existing network to make sure that different licenses are used. Yes, you can re-install it on different machines and get away with it. That's great if you are a single user that has two machines. But then you give the disk away to another guy and he sets up a group of people on his network with the same license. Again, because it is possible. I guess you don't find that idea harmful either.
So yeah, your desire to use it in a "non-harmful way" could ultimately hurt the entire Mac community.
Worse though, you have the nerve to bitch about Apple locking out hardware support for something they never officially supported anyway.