A while back I read an article that was titled "Brewing on the 2s" or something like that. What I remember was the author suggesting that you use no more than 2 malts and 2 hops. It really got me thinking about ingredients. I used to throw all sorts of stuff in my beers and they always seemed a little lackluster, I think the article referred to it as muddled or "brown". Since then I've simplified my recipes and only added something when I desired a targeted change. I believe my beers now taste better, at least I am enjoying them more since I've simplified. So when I see a recipe that has all sorts of stuff, carapils, melanoidin, multiple crystals, and a variety of base malts, I always think what can be eliminated and what really needs to be there to attain the goal.