Being on the same page is critical.
In plain English: We collect the information you provided (email address, username, etc.) when creating your account, to access this website, which is for evaluation purposes only.
In plain English: We use your personal data to allow you to evaluate this website.
In plain English: Nobody. Not even ourselves. The account you set up is just for accessing this website, which is for evaluation purposes only.
In Plain English: You have the right to delete your personal data or restrict its processing by ourselves and third parties.