You're a bit late... This scam site was already reported here a couple of months ago:
https://bitcointalk.org/index.php?topic=5151130.0Also, I had a look at that bestbitcoinmixer.org site... and saw this:
Seems like they try to make their "list" look "just updated" by setting their "last updated" date to whatever the current date is! :
Also, they say "coinmixer" and link to the old coinmixer.
se thread "review" (which also indicates the service closed in 2018!)... but the link takes you to coinmixer.
esEDIT: Thanks Ninja!