Some users are also to blame. The telegram group has all the information in the pinned post, which has been there since October last year, but they don't even bother to read. Even when mixing, there is a massage stating that minimum is 0.001 BTC and that the deposit address should only be used once. I guess that person did even bother reading the information.

Entered my address and clicked on mix coins, and then I see a blurred screen and these 3 boxes that seem to be spinning around forever. Is this normal behavior with Sinbad mixer?