[diminoten]

"Don't use" and "only use for people who actively opt-in" are two separate things, so no it doesn't come down to what you care about.

I'm saying give people choice, let them figure out what they care about. Making the choice for them is bad business and bad ethics. You don't know better than your users.

[falcolas]

Non-Facebook users are unable to opt out of Facebook tracking if you use the Facebook sdk. That’s the point of using the oauth standard, it allows those users a choice not available with the sdk.

[diminoten]

You can choose to load the SDK or not, e.g. only when the "Log In With Facebook" button is pushed.