They are real and provide their service with success since 2018 already.
source
bitcoinabuse
Site url
date
29 July 2020 Wednesday. 21:36:40 UTC
type
bitcoin tumbler/anonymizer
scammer/abuser
bitcoinmixer.to
country
United States
description
After reading all of the positive reviews about this mixer I sent BTC to it but it was never accepted despite having numerous confirmations. After two weeks it still says "Status: Awaiting Bitcoin...". When I send requests for support to "[email protected]" they are always returned with the message "550 No Such User Here".
All of the review websites are shills. THIS IS A SCAM TUMBLER!
