I've explored Fiverr as both a buyer and a seller. I found out a policy of Fiverr's recently that eroded even more of my trust as a buyer. If a seller does not deliver or respond and the order is automatically cancelled:
1. Fiverr defaults to giving you site credit instead of refunding to payment method, even though the situation is not at all the buyer's fault
2. Fiverr does not refund the service fee portion of that order if your site balance is automatically applied to your next order (at which point you have to pay the service fee again, no less)
Their promotions in general perpetuate a negative labor model, encouraging people to work all hours of the day for minuscule pay.