I, personally, like it more when I can say "no, don't track me".
It's only worse for the user when the cookie notification is blocking the content, there is no "no, I don't agree" button or clicking it means clicking trough 100 extra toggles.
Set the do not track flag if you trust website owners to actually listen to your request. If you don’t trust them to listen to your request, then being forced to manually tell every website you visit not to track you is obviously pointless and worse.
