[Ryewolf90]

You do need to understand how the internet works, the internet is a none persistent state, which means that anytime you visit a website it treats you like that's the first time you've ever visited. Hence biscuits, sorry cookies, came about to help websites know if you've visited before and therefore remember you are.

Alas cookies were exploited, so they weren't just tracking you on one website but across multiple sites. Hence the ICO got involved ( ICO = Information Commissioner's Office) and then we had the EU implementation of the General Data Protection Regulation (GDPR).

Which has a clause that all websites need to tell you about what biscuits, sorry cookies, they are collecting, how they are using them and also give you the option to deny. Most websites are implementing this wrongly, a website cannot say by using this website you consent to having cookies.

The new law says unless you consent, and consent cannot be implied by using a website, no cookies (unless they necessary for the running of the site) can be placed on your computer.

In order for a website to remember that you said no to biscuits, sorry cookies, they have to put one on your computer so that the website knows not to ask again the next time you visit.

My guess is every time you click that you don't want to have cookies there's a cookie on your computer that expires after 7 days. When websites create cookies there's also the option to have them expire after a certain point in time.