I'm curious about the thought process of people who use services like this. If the datacenter operators are being truthful, then posting mycrimes dot txt on the internet seems like a bad idea. Fundamentally, they're saying "we operate in a comparatively lawless area, and we're doing <x>, <y>, and <z>." But, all things being equal, I'd expect things like regional militias and organized crime to fill the vacuum of state power, and explicitly saying what you do seems like it opens you up to getting shaken down or worse.
On the other hand, they also have no real obligation to be honest about the service they're providing. If they're already publicly claiming to be doing crimes, then being dishonest about the security and safety of the services provided is a drop in the already-quite-full bucket. My guess is that unless they're extremely principled about their specific view of free speech, the risks inherent in the venture mean they don't believe this necessarily has, say, decades-long sustainability as a business model. If so, then maximizing near-term profit by cutting corners or abusing access to customer data is probably a very tempting option.
Looking at the angles, I have a hard time seeing who'd want to use a service like this.