saubhikr, do you believe that -2200 wins more with a 30 move-theory spanish book than with a BDG? Would you win against every BDG you could face? The BDG is proved to be worse for White than for Black? If yes, is it easy to prove that?  White players couldn't learn anything from the BDG, couldn't they win or have fun win it? A BDG book is not less respectable than any other chess opening book.

Im interested by your responses saubhikr.

Did you include any of my games, Chris?

wow! Everyman is on the offensive!

The Blackmar-Deimer Gambit: A modern guide to a fascinating chess opening
Christoph Scheerer(previously Wisnewski) 
Do you wish to set your opponents problems from the very start of the game? Are you happy to roll the dice and take some risks? Then enter the intriguing world of the Blackmar-Diemer Gambit!

The Blackmar-Diemer Gambit is a dangerous attacking opening which has amassed a cult following amongst club players, a loyal band of supporters like no other in chess. White sacrifices a pawn in return for a strong initiative which tests Black’s defensive capabilities to the limit. Some experts have questioned its objective soundness, but there’s no doubting its success and popularity over the board, where pressure and a ticking clock often means it’s impossible to find the right defence.

In this book, openings guru Christoph Scheerer takes a modern look at the gambit. He covers in detail the most promising lines for White and the most resilient defences for Black, discusses the key ideas for both sides and highlights the many tricks and traps awaiting the unsuspecting player.

Covers everything White needs to know
Packed with original ideas and analysis
Ideal for improvers, club players and tournament players
Published August 2009 EU, September 2009 US | ISBN 9781857445985
Format Paperback, 192 pages

http://www.everymanchess.com/chess/books/The_Blackmar-Deimer_Gambit%3A_A_modern_...