fables22: As for the option being opted in as default - after careful consideration, we've decided to go with this because we believe that it's easier for an experienced user to uncheck the box than it would be for a new user to figure out how to turn the feature on.
Seriously, I do use Galaxy, and I find that reasoning stupid. It means that each and every time someone uses an installer, they will have to uncheck the box. And if they forget even once, they will have it installed, and will have to track it down and exterminate it on their machine. That places you on the same shelf as some of the most irritating installers of the freeware world :/
To get the installer, someone already has to ignore the big blue "try galaxy" button on the download page. Maybe you should make that button more explicit and obvious, so that people will realize there are two different ways to install and that they are not identical? Or have that same advertisement to install galaxy to appear on the installer screen, so that people will be aware of the (unchecked) box under it?
Nobody likes irritating, heavy handed goons, so please don't becomlike that. Pretty please? With a DRM-free, digital cherry on top?