Actually roobet didn't admit it was a bug but fixed the non-existent bug anyway. And the max win was not displayed if you didn't click on an obscure icon, so basically you could enter $500 and click 36x without being aware of any limitations - what would you expect to happen? In case of a win I would expect to get $18k. So I strongly disagree with roobet's attempts to have their cake and eat it too. They need to be either 100% transparent about limits without digging around and without needing a calculator, or have strict limitations in software, or both.
Legally they're right but I don't think yahoo was planning to sue them anyway. Legal doesn't mean honest however.
I've not used roobet or any gambling site for that matter for a long time. I've only picked up information from this thread, and some of it was based on my interpretation of that. I was definitely speaking from a more legal point of view, and more objective point of view. Morally, I'd rather not get into it as I don't know the specifics. For example, you mentioned that the icon was small, and looking at the screenshot it is fairly small. However, how are we to determine what would be big enough. Ideally, it needs to be in plain view rather than being hidden behind an icon that you have to click or hover over.
So, my interpretation of this whole scenario was wrong. Let me be clear, the win amount displayed once betting the amount was displaying wins over $2k? I thought it may have been similar to that of skybet (at least how it used to be) in that once betting you could go beyond the maximum return bet, however it would always display the absolute maximum you could earn. If, its the other way around then is it a little more morally misguided.