If what you're building is pretty standard, it might work, especially if there's no performance element. Web type stuff can often be "take this widget and glue it to this page" in which case it's almost directly from SO.

Pretty much everything I do requires parts that came from SO, but it's more like I get a bunch of puzzle pieces and then think about a smart way to assemble the big picture.

Then there's the profiling and arrangement that only makes sense on my particular codebase. No way to SO that.