I have done one RMA with Corsair and I received a good, quiet H100. Perhaps we should give them the benefit of the doubt, we all make mistakes. The fact they are scouring the forums shows they care about their products and their customer service. I have known other companies that deny product problems to the bitter end. Besides I can understand how the issue passed qualit control, the H100 must have always been installed in the same way in the factory and they always passed.
I have a Corsair 1000w PSU and I have never had problems, top product, and I have had Corsair memory too and never a problem with that either.
We can see they are trying to resolve the problem with the H100. When it comes to RMA, obviously each and every country has it's laws regarding replacements making it difficult for Corsair to have a identical solution for everyone.
One thing I think Corsair could improve upon is the service to people who have had extensive problems with replacements. Corsair take their numbers and call them, ensure they are getting the very latest replacement and call them again after the delivery to ensure they have got a good replacement. Also I would add, make sure customers are getting adequate emails regarding the status of their RMA's. I didn't get a call from UPS informing me of a pick up date (maybe their end), nor did I get a update of delivery of my replacement or consignment number.