Actually this is not a "shit happens" situation, you should take the time and actually read his case here and at askgamblers. Stake is toying with this guy for months now. Always taking forever to reply.
If you would be in his shoes you would be angry as well, this is not a small amount we are talking about. This kind of treatment can happen to anybody, even to you.
Did you ever see what they are asking of him? It's amazing what they are coming up with in their replies.
The main issue here is that so many people tend to dismiss victims of big sites like Stake right away primarily because of their reputation due to which they generally feel that the fault is on the victims side.
Sad to see @KosherMania go through this annoying ordeal though I doubt his problem will ever get fully resolved.
We had a discussion about these complaints before and the conclusion is normally the same. The casino will be relaxed with the requirement of lower level verification, because it requires basic documents that are easy to verify.
When it comes to Level 3 and 4... it becomes more complex and the documents takes much longer to process.
Imagine someone owning a company that are using that company to launder money and you have to detect that, before they use your site to launder their casino money.