It's true, but I think I have a valid point on this. First of all, Fiverr has given me full freedom to decide pricing for my service, so I shouldn't complain about this. I have already set the pricing by considering my efforts, so I offer a maximum 10% discount for new clients. For repeat clients, I offer more discount if I find the client to be really professional and capable of understanding business ethics.
If I find a client asking for more and more work, I don't refuse, but I keep them as a lower priority. And I believe that your skills matter here. It's not about giving everything they want but making them aware that you are doing work that is not part of the original order. Many times, I clearly explain to them, saying something like, 'I will do 'this,' but please consider that I have to spend a lot of time doing things like...'
I have also faced this kind of problem, but it's totally out of my control.
I had a client a couple of months ago who placed an order in June, and I delivered the order in the next 2 days. He kept requesting revisions every 3rd day, just a few hours before the order was due to auto-complete. He would only add the text 'Have a revision' and then go offline without providing any details about the revision. I asked many times, 'Please let me know what the revision entails,' but no response. Other hand, according to Fiverr rule I count deliver blank revision. Finally, the order was completed more than one month later. It’s difficult to want for completed work.
Another client placed two orders. After one month of completing the order, I received a notification that Fiverr support had canceled both orders. The total amount was more than $700. Fiverr support didn't even mention why the order was canceled. After raising a ticket, support told me that the client had requested a refund through PayPal, so Fiverr support couldn't do anything about it.
Fiverr definitely needs to address these issues. While there are ways to deal with people who misuse Fiverr, there are also many genuinely good people on the platform.
In the end, it's a bit bitter to accept, but I believe that if I can't do business on Fiverr, then I may not be the right person for this platform. It's better to move on and not blame anyone or Fiverr. And here you need to rethink about your carrier/business/goal.
I hope this helps you in your freelancing career.
Best of luck.