Now on to the obvious question right now, can we simple users do something about this?
Reporting to google for fake misleading ads is one thing and I did that a lot of times, but here is something that I guess is a bit more complicated, so stick to reporting the xyz domain as a phishing website via the safebrowsing report tool or is there something else we can do about it?
Reporting phishing sites, DMCA reports and/or counter notices. I think it's first and foremost in Chipmixer's interest to hire someone to do it for them. Maybe one of those 'reputation management' companies could be of use.