[rcxdude]

This is utterly confusing the use of the terms. Opting is making a choice. The default isn't a choice. Opting by default makes no sense.

[rubyfan]

Yeah it is. What I mean is the default is you have not opted in. You must choose to opt in for this type of tracking. It should be a choice that doesn’t preclude you from using a service if you don’t allow tracking.

[quantum_magpie]

You are describing opt-in policies — you’re out by default and you have to opt-in to be tracked.