It's a mailing list, not a unix app. I'm not going to be piping the output from this into something else. To me the core "value prop" of this is "inspiration" for things to make. Adding specifics to that seems like a natural extension.
I wouldn't say it's inspiration that's lacking. It has more to do with the fact that vegetables are more expensive and harder to get than junk food, and the contents of said junk food, combined with factors like time and cultural trends, and of course education.
Exactly. It doesn’t make sense to build a recipes app when many already exist. All they need to do is link to allrecipes search by included ingredient, and preferably sorted by average rating. Feature added with much less effort.