Caveat Emptor  
Guest, all transactions are made between the two parties. Astro What? cannot be held responsible for any problems (merchanibility, legality of ownership, failure to pay/pay with illicit funds, etc.) with the transactions as these are private sales between the two individual parties. Abuse of this feature will result in loss of access to it and possibly further user restricitons on the site.
We do NOT recommend using PayPal Friends and Family to make payments unless you are familiary with the seller.