I don't know what is btcmixer.io (?), but if you think about Bitmixer.io - It is the longest-running and most respected mixing service right now.
If you have any proof that this service scam anyone, please provide at least one example.
The difference is that your "service", are not able to provide even one example of a satisfied customer.
If you promote bitmixer.io with HUGE BANNER in your signature
then it's YOURS!!I read a lot of people scammed by that site.
I wish it was mine

Unfortunately, it is not mine, and the banner in my signature is just his advertisement from signature campaign:
https://bitcointalk.org/index.php?topic=1657397If you've read so much about Bitmixer, please give us one link .. By the way, please give us also link to the withdrawal transaction ID from your scam service!
Recently there have been numerous phishing sites (like bitmiixer.io or bitrnixer.io) advertising through google. The screenshot in this quote gives some examples. Perhaps he got scammed by one of those sites. Those ads are sometimes at the top of the page before all the real results of a search for bitmixer. It's easy to click one thinking it's genuine.
Hi, could you please pm or public your Letter of Guarantee?
Warning to all. Please be careful and always check the URL in your browser as well as Letter of Guarantee. Currently there are lot of phishing sites, like bitmiixer.io or bitrnixer.io
They're always advertising on Google:

Why does Google even allow this?