Usenet providers are not interested in what you download, nor do they have the resources to track every user of the service.

Perhaps because of the wide open nature of Usenet, users are often concerned with privacy and anonymity in newsgroups. Since the earliest times of these concerns, there has also been a feeling that someone, somewhere, keeps track of what users access on Usenet. While this makes for an exciting conspiracy theory, it's quite far from the truth.

The great majority of Usenet providers respect the concept of Usenet as a forum for free speech. It's also a trivial task for a Usenet provider to restrict access to newsgroups that they may not approve of. These two facts combined mean that your Usenet service provider doesn't care which of their groups you access, and any content they might find unacceptable will already be blocked from their service.

The other major factor that keeps Usenet providers from tracking downloads is the sheer amount of resources necessary to monitor every single user of a service. Popular Usenet providers have thousands upon thousands of customers, and a fair portion of those customers will be accessing the service at any given time. The bandwidth, processing power, and storage needed to track and log everything done by those users would surely cost as much as simply operating the Usenet server in the first place, if not more!

Most cases in which a Usenet user has their service suspended (or worse) are the result of that user being reported to their provider by a third party for violating an acceptable use policy. This reflects the self-governing, community-oriented nature of Usenet. Tracking downloads is immaterial and impractical for Usenet providers.