For the record, I trust both RHavar and devans and I don't think they would ever cheat.
Now, hypothetically speaking, I think the odds of a malicious player have been dramatically understated. RHavar makes it sound like it's some crazy thing for both systems to be independently compromised, or for collusion to happen, but it's simply not. RHavar and devans have known each other for many years, and have in fact made deals between each other of over 500 BTC. They are effectively the same person in this scenario. Collusion is not a possibility, it should be a presumption. If investors distrust Ryan OR Daniel, they should not invest! Trusting one is not enough, because they could easily collude. (Once again, this is just an observation. I would invest in bustadice because I trust them both.)
I saw Hunter's bets live and I was amazed. He turned 0.005 BTC into 35 BTC. That's just fucking insane. I've had some crazy runs, but nothing as crazy or lucky as that.
Of course it is not entirely impossible for both of our servers to be compromised at the same time and without our knowledge. But especially considering how miniscule the attack surface of the audit server is by design, it is very unlikely. bustadice's unique architecture doesn't just protect investors, it also gives me as the game operator great confidence that Hunter's win was legitimate.
With regard to possible collusion I disagree with you because your reasoning is flawed. If you ascribe each of us a certain probability of being malicious, then the probability that both Ryan and I are malicious is necessarily lower than the probability of only one of us being malicious. That we have a certain amount of trust for one another doesn't change that. It's not like knowing someone for a long time suddenly makes you want to violate your principles and commit fraud.