Frankly, under tournament conditions, my opponents would laugh at me under their breath if I played this opening move.
They can laugh all they want.
Back in 2008, I was 2029. I played 1.b4 in Dallas in all 4 of my White games at the 2008 US Open (Rounds 2, 4, 6, and 8).
My results? 3 1/2 out of 4, smashing an 1800 in round 2, Drawing a 2202 in round 4, destroying an 1865 in round 6, and blowing away a 2173 by achieving a completly winning minor piece ending where Black was forced to resign 10 to 15 moves later.
My Black results were also decent. Won by forfeit round 1, so that didn't count. Drew a 2300 player with a Scandinavian Round 3, blew away this jacka$$ named Jeffrey Haskel in round 7 in what was literally a Reversed French McCutcheon (reached thru the Colle vs Chigorin Defense, 1.d4 d5 2.Nf3 Nc6 3.e3 Bg4 4.Nbd2 e5 5.Bb5 e4 6.h3 Bd7 etc) with no gain of tempo for White as he did an early Nbd2, forcing him to play b3, Bb2, Bc3, and b4, where as Black, the pawn moves forward b7-b5 in 1 move. I was low on time in the first time control, made my 40th move, and he literally flicked his king across the board with absolute refusal to sign the Monroi that both players are supposed to sign. What was real funny was I reported they guy, saying that I have only 1 signature because my opponent was being a jerk for losing and wouldn't sign. Guess who was handling the Monrois? My stupid opponent's father of all people! My 2 losses came against an Expert and a 2400, both Black against the English, in rounds 5 and 9.
1.b4 is NOT a bad move!
ps FirebrandX, the chess game you listed to show Black's best reply to B4 I think is not that impressive. White loses the B pawn in exchange for Black's E pawn! Not good!
I'm afraid your understanding of the game is still in embryonic stage.
I agree, and I would like to add that this is a good example for the general observation that MOST PEOPLE NEVER READ WHAT OTHERS HAVE CONTRIBUTED. In this case, fischerii did not read my several posts on 1.b4 e5.