Complaints are repetitive when they are not resolved.  You are showing personal opinion towards this comment and the users work and it is defamation of character and slander, which i'm not sure is against wikipedia policy but it is certainly against ic3 and fbi cyber crime  policy, not to mention a civil court issue. Simple terms, it's illegal.  I don't know what you are reading, but the user has posted what appear to be links from google, leading to books which appear to verify his claims.  I think they could of done a better job of keeping this clean.  I would refrain from personal judgements such as "the user has no basic understanding of english grammar" "the users work and publisher endorsement are nonsense" and to be snarky, the irony here, you claim the user has no basic understanding of the english grammar and punctuation, but in your post you state verbatim: "you haven't even learned to sign the properly." what does this mean? care to elaborate and enlighten me? I'm sure op has learned this and can demonstrate this in a court of law, you might want to refrain from inaccurate assumptions about this user, this again is slander.  which you have violated 4 times by my count in one post.