What I don't understand though is whether those who got asked by Binance to explain their connection with that address used Binance to deposit their signature campaign earnings, or they first got money on their own non-custodial wallets and then moved it to Binance?
I mean, neither of those are smart things to do but I am curious how deep Binance actually goes in their investigation.
I think that in the event that the funds went directly from the campaign address to CEX, there can be no doubt as to where they came from and that is a problem for anyone who received payments in that way - while in the event that there is another address in between, there can be justified suspicion that the client is not directly connected to the mixer.
I think that CEX never seriously analyzed the transactions in the sense that it froze funds that have to do something with
"mixed coins" that are not directly related to any major crime. In other words, I never got bad feedback from the people I sent payments to their
B accounts, but of course I never allowed those transactions to be in any way connected to the addresses I used in the campaigns. In other words, even though the coins were
"mixed", it was never a problem for the exchange.