Thank you, and these are important questions to ask. We have done our best to be as transparent as possible throughout this thread, and although some things we cannot share, we should be able to answer most of these for you.

Multi-accounting damages Betcoin and all sportsbook financially on a daily basis. This is why every single casino/sportsbook has a rule against it. There are many ways this can happen from abusing promos and bonuses, to circumventing betting limits, using banned technology (bots) to place bets and more. Exploiting casinos and sportsbooks is a full time job for many, and the reason we banned this player's region 2 years ago was because the volume of fraud exceeded the volume of legitimate players, considerably. That is not to say that he is abusive because of where he is from, however the pattern of creating multiple accounts to violate other TOS is the same. Based on this player's activity, we do believe he is a professional, winning player and the fact that he created 2 accounts certainly lends itself to the fact that he would create others. The problem in these situations is that the abusive players keep coming back, thinking they will be anonymous. We still have people who were banned 2 years ago who come back on a monthly basis. This is part of the reason we don't discuss these publicly, as the more people who are aware of how to exploit sportsbooks, the more will do it.

We spend many Bitcoin each year on fraud prevention technology and every time the abusers discover what we have, they come up with new ways around them. As mentioned earlier in this thread, we have banned approximately 500 abusive accounts this year. Through cooperation with some of these accounts, we have gained access to several Discord and Telegram groups with thousands of members, which specifically teach players how to cheat sites, including different methods of exploitation, how to make your region undetectable and how to fake your KYC documents. We learn a lot from these cheats, and just like them, we adapt our security as well.

He suggested that his account was banned because of the same bets and same Bitcoin wallet. Obviously, this does raise red flags, but it is just a part of a greater body of evidence that we have on these 2 players. As this player knows well and stated in the title of this thread, his account balance was about 1 BTC. He is playing dumb, but if you read through his posts, it's apparent he knows exactly what he is doing here. The bets aren't exactly the same, as 1 of the accounts was only active for 2 days, however the ones that are the same aren't UEFA Champions league, like he suggested.
They are bets on very low tier matches where these 2 accounts accounted for 90%+ of the money on the entire match. And he will say that they shared information. Just like they shared a Bitcoin wallet and share the OP. But these little deceptions show that he is skewing the information in his favor. Just like he said we never replied to the other account's emails when in fact we did and the other account did not deny it.