Uninstalling 3mb of Rosetta
I'm a system engieneer and mostly support small business networks (under 100 seats) and I get very frequent request to remove/delete/uninstall something small and inconsequential they saw on their drive. I will try to tell them, "You have (so many hundred) gigabytes on your drive, I would just leave it alone." But they still argue, and some insist. I think it's some sort of OCD. They are just really bothered by having unused data on their drive. (Thankfully I keep the System32 contents hidden for Windows users 😉. )
Having said that, this thread does bring up an interesting question, if the Rosetta components are smaller than most Keynote documents, and do not affect the OS in any way unless needed, then why does Apple require the extra "are you sure" dialog to install it, and why not just leave it as part of Snow Leopard if it is in fact, occasionally useful and never harmful?
The "Grapher" utility alone is 20mb and is a very specialized tool, it just doesn't make a lot of sense to me that Apple throws in all kinds of small "extras" like that, but makes you choose Rosetta as a "custom" install option.