The Coffee Room uses off-the-shelf software called bbPress (which itself is a plug-in to WordPress, which the YWN main site uses.)
Thanks for that information, Joseph. That explains why the Coffee Room software resembles a project that a novice programmer did in his spare time. 🙂
You wouldn’t necessarily need expensive programmers to customize it. A dedicated and qualified volunteer could do it. But then there’s the issue of continued support and maintenance, security patches, etc.