I think it's a sarcastic comment, saying a "block explorer" is all it takes to trace these and implying that the document is dumb for saying otherwise.
I don't know the details of the case well enough, but this is a usual type of comment on HN, and my a priori assumption would be it's probably oversimplifying reality and ignoring context as is also usual.
I don't know the details of the case well enough, but this is a usual type of comment on HN, and my a priori assumption would be it's probably oversimplifying reality and ignoring context as is also usual.