I’m almost positive most of the users reject cookies when the alarming pop-ups show up. What’s evident is, as advertisers, we need to find better ways to identify users.
There are libraries like ClientJS, specifically built for this purpose.
Is not 100% accurate, but it is a reliable way to make an educated guess about returning visitors.
You should take this as a
If you didn’t convince a person to become a subscriber or a customer (and create an account in your system) the first time she visits your page, you can try with a different, more relevant, message by identifying is the same person visiting again.