how did you do it?
everybody will doubt about you making millions exploiting a crypto casino actually. those guys will ban any account if they notice suspicious activity. so when you say you got millions, does it mean you got tons of BTC withdrawn from the casino or is it because of the bullrun that you have trade it to usd already that your millions?
If ever this is legit, it's going to change him and other hackers because after this, the casinos are now aware of their methods but this seems not a big deal to OP since he said he already made $1M from doing it and he said he made it in 2014, so no, he didn't waited for the huge bull runs but imagine if he did? He could even be a trillionaire or more now. If the casino bans the OP, he can just create a brand new account and do that again, so the only way for the casino to prevent the same occurrence is when they improve their website's security.
this is a legitimate question i think so we're waiting for it. you'd probably get more questions after answering this question which i believe is what you wanted which is to be asked.
There are questions already that are being thrown before this post of yours and this thread was still new but once many noticed it, I'm sure it will be flooded since it was an interesting topic.