Blaming S.DICE is useless. That service alone currently pays more fees to the network than all other Bitcoin usage combined. As S.DICE grows, it will pay more and more fees. More with each and every new user. That is how it's supposed to be of course. The problem here is nothing else than a setting that is slowly but surely becoming a problem for overall Bitcoin usage.

If services such as S.DICE become even more commonplace, obviously we can't just raise the blocksize on their account alone. We can let the fees rise a bit and control it that way. This problem is not about S.DICE though, it's about overall Bitcoin adoption. Without S.DICE it would just take a bit longer, that however would change nothing.