It is not ok and you can see it with the quoted post of theymos above and this following quotes. I highlighted necessary parts for this discussion but decided to quote full posts to help you understand the context.
I received a lot of questions by PM, let's clear the situation.
1. We are not under feds control, all our users are safe, all logs and old wallets deleted. We had incredible multiserver custom written Bitcoin software and outstanding mixing algorithm. It is impossible find out even the fact you used bitmixer (it is possible only by logs of your provider if you didn't use tor version). We didn't had linked wallets, traceable ip addresses etc. Don't worry about your past transactions.
2. We do not sell the domain name nor our software nor methods we used for mixing.
3. All I wrote is true. I've changed the view of this business and Bitcoin future. About question "is a knife good or bad tool?". If you sell knifes and you know that most of your clients are murders, will you stop your business? My pastor suggest me it is not a business I should continue. Sorry for that.
4. The message to other mixers. If even btc-e considered as money laundering service, what do you think about your business? Don't be innocent.
Very important message for our investors who still didn't take money. Please take your principal using your investor panel.
Thank you.
he government pressure doesn't work like "Oh man please close your service!". No way. They just come and arrest you for illegal activity. We are the privacy experts, it is hard or impossible to find out our location and personality, our servers are located in the country where Bitcoin is not considered as a currency, etc, etc. I could sell the business for our competitors for $5-6M, but I will not do this. It is important that you understand my position. I really revised my view about Bitcoin as a transparent system. Bitcoin has no future with drug/weapon traffic or any other illegal activity. This is my point.