I keep some investment in Yolodice, and I must say that I understand why they closing down his business.
After six months, I am at a loss was about -30% in LTC and have some minor profit of around 3% in my Doge investment. If they also operated according to that model and shared profit/loss with investors, then it is expected to close the business there.
Also, I lose there some of my coins due to security reason, I never got a reasonably detailed explanation of what happened and who withdrew my coins from his site.
I don't think that you can blame the losses on Yolodice.
Unless there is substantiated evidence that Yolodice is tampering with the provably fair mechanism, which there is none, then the losses can simply be attributed to variance.
But the security problem is very interesting - how much did you lose, when was this, and what was the resolution that Yolodice gave you at the end? Did you get to speak directly to the admins about the issue or just a mod/support?