Why are people complaining about Fiveofswords' replies? He sounds reasonable to me (I had some of the same questions as the OP). It's okay to express doubts about the Stonewall Attack, while at the same time commenting on some of its characteristics.
So many people on this site seem to grab at straws, looking for reasons to take offense.
I couldn't really find a question in the OP though, he just sort of threw it out there that there's a set up called the stonewall.
@ D-rose-1
it's a system, so black can choose any setup he wants against it. If the standard themes don't work, you have to play a middlegame using your general strategic knowledge.
And the more endgames you know, the more the next level of middlegame concepts make sense.
So my feeling is the "answer" (so to speak) is the same answer to the very common beginner question "what if my opponent doesn't play the move I memorized?" The answer is to play chess... which is very hard and takes a long time to learn. Luckily it's just as hard for your opponent. So learn the basics in each area (endgames, strategy, tactics, openings). Once you do some improvement in all those areas, you'll be beating people who used to beat you, and you're ready for another round of endgames, strategy, tactics, openings etc.
The key to the Stonewall Attack is understanding its limitations.
1/- Don't play it against high rated players, its a intermediate club level surprise weapon
2/- Know when not to play it e.g. if Black plays an early move to counter the LSB
3/- Know when to abandon it & transpose to something else. (You may need a bit of study for that)
But if you like the structures & tactics after the opening then stay with it for a while. When I played it as a club player it taught me a lot about tactics, especially the art of sacrifice.
I wrote a bit about the Stonewall Basic Concepts in my Blog, check it out if you want to go further with it