Still the question remains and it becomes pertinent by the fact the you are a Mac user. How was it possible to miss the Intel transition that happened in the meantime? Don't you read the news about the Macintosh? Just curious.
This could be true long ago but not anymore. And it is not Apple but the general technological evolution forcing you to upgrade. You cannot keep a computer for five years or more and expect it to run flawlessly under any situation like it did in the begninning. The most notable example is the ubiquitous internet. It taxes more and more the CPUs and on top of that, it may need software that will never be available for older Mac OS X versions.
I have a black Macbook which...
I know it is not just a translator. And regardless of how much complex Rosetta is, testing and cost to maintain it do not hold water as arguments. Apple could easily keep Rosetta and even make money from it by selling it from its store as an OS X add-on. People would groan and moan by being "forced" to buy it while it was free before, but those really in the need would end up buying it. But then this would mean that Apple tolerates software stagnation from the...
Of course we are forced to upgrade. It is called evolution. Software and internet are not stationary, so we just don't have the luxury to not upgrade. The solution at this point is to keep an old machine around for the more or less frequent use of old software.
This is not possible for applications that are cannot be updated anymore. The most common example is old games, and people that liked them are likely to play them for many years.
Apple could certainly offer Rosetta as an optional installation under Lion but they chose not to.
Good for you, and for me since I did so years ago. "Safe files" looked always funny to me, to put it mildly, and I have never left a Mac I had access to, or any account on it, with this on.
But does the security update turns this option off? Or it sitll leaves it on?