Note that thegreat_patzer @298 is quoting Watson's positive review of Silman's "The Reassess Your Chess Workbook."
Watson recognizes it as a valuable book for the average player who may have been stalled at his rating for a while.
What Silman critics ignore is that Silman is not writing for ambitious advanced players. His books are not the latest cutting-edge tools for players on sharp arcs to break into Expert or better.
It's not a crime or a character failing for a player not be ready for the Yusupov course or Zurich 1953 or the Dvoretsky Endgame Manual. Such players may still want to improve and there is a place for instructional books written for them.
IM John Watson?
"It is a unique and thought-provoking work which deserves close examination"
http://theweekinchess.com/john-watson-reviews/what-should-the-average-player-study
he also says
" Like most chess instructors that I know, I find many of the leading instructional books superficial, poorly written, and thoughtlessly imitative. The books that best fit this description tend to be the most advertised ones; these are aimed primarily at the large beginners market (while making some silly ‘beginner to master’ claim), with the author(s)’ idea of productive communication apparently limited to the back cover hype. So you won’t be surprised that I generally forego discussion of works of this type. Of course, there are certainly worthwhile exceptions out there (many published by small presses). Unfortunately, I don’t read much in this area and would rather utilize my limited reading time elsewhere. "
so I think he's trying (in pfrens lingo) to be a discriminating reviewer of the book