Just guessing here, I think that would be a massive job that would require a complete site rebuild.
Also, often times additional posts in a thread that starts off with a recipie add clarification and offer variations which make the original recipie more useful.
The categories sort things out pretty well.
While our search tool is not always helpful, Google will do a lot and by adding "site:discusscooking.com" to the end of your search terms, will cause Google to only search this site.
One difference between a cook and a chef is that the cook mows the lawn, while the bread is rising.