Isn't there a big difference between asking users to opt in to "share" their data with Ghostery (which is what Ghostery says) and asking users to opt in to have

Isn't there a big difference between asking users to opt in to "share" their data with Ghostery (which is what Ghostery says) and asking users to opt in to have their data (what data, btw?) "sold" to advertisers (which is what Ghostery does)?