The thread was explaining why users had their withdrawals suspended and why it is important to use self custody all the time. I didn’t say they used centralized exchange or that both accounts were wrong, but rather was again advocating other participants for more use of self custody to further prevent situations like this.
What I can see is that two addresses looked similar, so mempool showed a warning that it can be an address poisoning and even if it is the exchanges don't suspend all the addresses linked in the txid that is ridiculous if it is real and I don't think there is any reason for an exchange to do that.
How did you get that information? Is there any place the exchange mentions about blacklisted transactions?
All I see is two similar addresses show mempool show a warning like it could be an attack but if it's actually two different addresses, then there should be no problem with that. Certainly, exchange's blacklisting seems weird to me.
You can simply check or verify this by actually looking at rainbet signature thread and see that some members changed their addresses. Maybe you can see how I got the information
What I am seeing is some people requested their address to be changed but no one mentioned anything about suspension of kucoin exchange or address poisoning that is why it is really confusing why you came into such conclusion?