I think a lot of gis.SE visitors are looking for code. Sometimes a small snippet of code is sufficient to answer a question, but other times it can become lengthy. Also, at some point it becomes more of an exercise in programming rather than in GIS.
When code gets long (like here), where should we put it?
I've considered getting involved in CodeProject, but it doesn't seem an appropriate home for code that hasn't been polished.
Many of these visitors probably don't care much about the underlying science of GIS, they may simply be programmers asked to do something with GIS but are not sure of the right approach.
I just discovered CodeReview.Stackexchange, which looks like a good place for questions about code, though not sure how it would integrate with gis.SE.