The "Like" button is not a hyperlink. A hyperlink doesn't reveal your identity to the target site unless you click on it - the Like button will ping Facebook ab

The "Like" button is not a hyperlink. A hyperlink doesn't reveal your identity to the target site unless you click on it - the Like button will ping Facebook about your presence even if you don't click. So yes, there are major legitimate privacy concerns about this. I'd hope you weren't aware of this, otherwise this would be an incredibly disingenuous argument to make.