The FAQ states:
What kind of questions should I not ask here?
[...]
If your question is about …
- Networking, servers, or maintaining other people's PCs and contains no source code, ask on Server Fault.
- General computer software or hardware troubleshooting, ask on Super User.
- Web design and HTML/CSS layout, and your job title is "designer", ask on Doctype.
How about adding something like:
- Programming functionality on your site, ask on StackOverflow
I'm concerned that we're diluting that key resource by not encouraging programming related questions on there.