>_and_ should be default to opt-out. Here I don't agree. It should be certainly be visible, so you can make an informed decision whether or not to use it. But

>_and_ should be default to opt-out. Here I don't agree. It should be certainly be visible, so you can make an informed decision whether or not to use it. But it's a sad fact of human nature how little we are willing to contribute back even when people give us something for free, even if just a click away (not to mention paying a small amount, filling a bug report...)