Could you please correct your list?
The fact is that one of the services, namely SmartMix.io was charged with a scam March 23, 2018.
https://bitcointalk.org/index.php?topic=2815450.msg32960872#msg32960872After that, several more users confirmed that they had lost coins.
To date, the SmartMix.io did not make any reply messages, which indicates that the service most likely ceased to exist.
CryptoCoinUpdates.com was the first to respond. They removed all SmartMix promotional articles, issued a scam warning, and rebuffed the scammer when asked that the scam warning be taken down.
LeGaulois has updated his list and has removed SmartMix.io.
DeepWebsitesLinks Top 5 Bitcoin Tumblers list had SmartMix.io listed as its #1 tumbler. It has been moved down to #7, and is now appears as "
7. SmartMix.io (Got Scam Complain)." They still have some work to do, however, as listing SmartMix.io at all places readers at risk.