YES. You must have an account on Fourerr with a valid e-mail address, which may also be your PayPal e-mail address. The reason you must hold an account is for the security of our community. This also helps us track of the progress of your orders. An account is also necessary so that you can communicate with a potential buyer and/or seller.
Having an account makes you eligible to enjoy Fourerr Rewards: http://fourerr.com/rewards