so the problem is that you cannot prove that you actually have sent a voucher, it could be a simple postcard, and most probably you wont be able to prove that the certificate was reedemed because these shitbags at paypal wont even check any online confirmations, they do not accept any video, photo evidence of you packing an item and so on (afaik). but I agree, its extremely profitable now.
in my opinion the only way you can protect yourself is to sell using best offer. no buy it now, no auction (where you have many possible buyers but you cannot choose a winner), just a huge buy it now price with a best offer option. You probably will have less buyers with best offer but atleast you will be able to choose who to sell to by checking their feedback and previous crypto trades
where is their promised "20k up to 500k" giveaway? earthcoin has the highest fag concentration. you do not even bother to check if similar topic has been already created in the already spammed forum. how many new threads were started yesterday about eac upcoming exchanges? people are fucking tired of your "last chance to buy in" shit