After trying to withdraw 10 mBTC to different casino I had to wait for hours and I received email asking me to complete kyc if I want to withdraw my coins.
Why don't you complete KYC first, and if after completing KYC you can't still withdraw, then you can now complain about any inconvenience, as far as i know Fortunejack is not the only casino that requests for verification, if they have changed their policy to include it, i feel customers have to comply or choose another casino.
This case does not have enough proof for you to say Fortunejack does steal coins from people, because that is a serious allegation, the op of that topic has not provided strong evidence for any member to verify what they said.
It's strange that this is happening in the same time so I suggest everyone to stay away from fortunejack website.
With or without kyc you are at big risk of getting your account frozen and coins stolen.
I feel you are jumping into conclusion very fast.