Cookies are not dangerous, they are just small text files wich contains informations about navigation.
So don't be affraid, it is impossible to hack your computer with those small files, but the (French) law forces the webmasters to ask for users to be agree with that.
For your information : cookies used by échangeDeLiens.coM are just used for navigation and dont trace you.
The webmaster decide if he validates your website or not, illegals websites are removed, if your website is OK, he will be validated.
Backlinks are verified all nights, if a backlink is missing the website is no more indexed but not deleted, you will be able to submit it again when you want.
Verification occurs after submission, this is an automatic exchange links'website : that means your website is automaticaly registered, the verification is a manual validation to verify your site is OK, to have only legal and correct websites on the index.
You have full control of your personal informations as said in the (French) law, you can modify and remove some or all of your informations on this website.
By removing your account, all your links exchanges will be removed.
Hope this automatic exchange links'website will be usefull !