[krageon]

> Especially if the data is not sold but merely used to improve ads

Which is never. It's disingenuous to even pay homage to this idea being possible in practice, as it makes the space seem a lot less seedy than it is.

[fx32s]

You can be targeted without explicitly selling data to a third party. This is how most large advertising networks work. They don't send a dump of all user data to a third party who wants to advertise.