nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqc2kkl40dmqcf3y32wujnt09syuujl35nd32flmlj3gjkw2vp852qa96n2l (nprofile…6n2l) There is/was a system with that name around since the early 2000s. If that's what they're talking about, I remember that system had a real problem with the bad kind of illegal content.
I think the two questions where most of these systems fall over are (1) does it *actually* provide protection against powerful adversaries and (2) how do they approach moderation. Usually, (1) breaks down for anything like a state, and (2) is usually just isn't there.