What problem would this address? For the most part, the section names themselves do a pretty good job of communicating the appropriate location for various content. In the relatively rare cases where content is placed in an inappropriate section, the moderation system does a good job of flagging those posts and the editors do a great job cleaning them up.
Update: Besides, how about just asking the question in the CB? It's generally monitored by several "expert systems" that are very good at interpreting natural language questions and responding with reasonable answers. ;-)
"My two cents aren't worth a dime.";