People use different mixers and the backend is not very important for them. All mixers provide the same service and never one of those who mix bitcoins in it doesn’t care about using its own script or third parties.
People decide to use a mixer because of its advertising and marketing.
I sell not just the main page and the script, I sell a fully working product from which you can earn and which you can develop. At the price of development.
From your post, I see that you don’t care whether or not the mixer is good or actually makes the transactions untraceable. Only that it had a “good” design and marketing. Not the kind of mixer I would use.
If you think that my mixer somewhere violates the anonymity of customers - please show me where. All information on the privacy rate indicated on the website is valid. We do not store or transmit any user data. We do not even use Google Analytics counters. Our product is really good and I am sure that it will find its application and success.
Well thats the point isn't it ? We can't see whether or not you are storing data on your backend. What are users are trying to say, if person is to use ANY mixer, a person must trust that they don't store information on their servers (something we cannot see from looking at pretty designs and google ads). Now in your case, you don't actually have a mixing service (code that is doing mixing), so you are using someone else's service to do the work for you. In this case, every single user has now to worry about 2 servers logging all info, or simply being breached and leaking data in any other way. I hope I've better explained to you what TryNinja said in the first place.
Taking all this into consideration, this site on sale is just pretty design with NO REAL FUNCTIONALITY. Its not worth 1000+ USD as it does not do anything. I think any Indian on freelancer.com can make something like this for like 150$ (just design and using someone's API).