You are right. I have not added bet105 to my collection yet. Maybe I will consider doing that in a future update. I have bet on sports a few times at bet105, but the offer is quite limited to be honest. In comparison to other books, bet105 only offers the biggest leagues and the most popular sports, with plenty of sports events missing.
It's positive to see that they are not charging players any withdrawal fees, though.
I did not know about your criteria for adding a casino on your thread but thanks for sharing. I think if a casino is not scam, and has operated for a quite long enough time without negative trust and feedbacks from forum community, it's deserved to be added to your list. Let's consider about it.
For USDT withdrawals, they only support ERC20 network.
By the way, the transaction fee on ETH network isn't very expensive these days.
If you check the ethereum blockchain, you will see that USDT transactions are being confirmed with the fee of around 0.0001 ETH. I remember ERC20 transactions were much more expensive in the past.
I know that transaction fees on ERC20 chain have become much cheaper than how it was expensive in the past, but it is still not cheapest chain for on-chain transaction fee. It's why I asked this information and I am thankful because you shared that the casino only supports USDT on ERC20 chain. I am not sure why as nowadays, many platforms from exchanges to casinos support multiple chains for deposits and withdrawals especially with a big stable coin like USDT.