NTD is the European version of DMCA essentially.
It's not a good thing; but usenet providers like any other internet service are generally subject to one or the other depending on their location, so it's good to know which one covers the provider you use.
With providers spread across the globe, mirroring each others data, and subject to different copyright notice/takedown laws; the whole system is quite robust against removals. While you can send notices to individual providers, It's extremely difficult to coordinate a global takedown effort and truly remove content from usenet as a whole.
That's why multiple provider's in different regions can be beneficial. Some people will buy 'block' accounts (a fixed amount of data to be used as needed, vs a monthly cap) for a provider in a separate region to fallback on when the data has been taken down from their local provider.
I'm guessing the black parts slide like wax? For 'grinding' without a board?