guys, OP can't admit it but they are under duress.
This is as obvious as it gets and this is their form of warrant canary. OP specifically mentioned those honeypot coin alternatives to simultaneously aid law enforcement create new investigations on users that don't catch on, as well as make it obvious as code words for their duress.
OP didn't say Zerocash, which has the optional opaque feature although nobody uses it properly. OP said Zerocoin.
OP didn't say Monero, which would stifle all law enforcement effort. In fact, no mention of cryptonote technology at all.
The incongruency was worded to be obvious to any body here for some time, but simply cannot say anything to reveal the state action against him. So therefore it is my turn to reveal how that works to help you all.
In response to non-disclosable actions by the government, some operators of tech services just shutter the service. This is what you saw with encrypted mail services in the past that weren't decentralized enough to simply ignore government pressure.
This is possible but I don't think this is the case. The kind of website that bitmixer runs means the government is more likely to seize their servers and arrest the owner than serve them with a warrant and/or subpoena.
The OP is likely afraid of capture and shutting down means his chances of this are the greatest.
It is possible that the OP looked at transactions in a short period of time and/or looked at support tickets and say a large percentage of transactions to/from DNMs and don't want to become a target for law enforcement.
There is no quitting in this business, you'll soon understand what I mean, when you enter this business you'll have to stay in it till death do us a part.
Not true. You should quit while you are ahead and while you have your freedom.