Anyone having experience in running a bitcoin mixing business ? What are the total costs involved and what are the ways to generate profit from this business ? Overall, what is the profit margin ?
If you are friendly with the Lazarus group, you can earn serious money. As well as a serious prison sentence.
Now seriously, there are no margins here, everything depends on the reputation you achieve and the popularity of your service. If I remember correctly, CM spent approximately 0.5BTC per week only on the signature campaign on the forum. This lasted for years, so you can guess how much profit it was if such an amount was set aside only for forum advertising.