There are subtle strokes that are off the chart of what I'd say "an average consumer" might find or look for that are _easily_ identifiable with a small amount of training and effort (I've identified roast or lot changes from my go-to roaster without any prompting or hints from them). I think Starbucks (outside of their Starbucks Reserve store in Seattle) really isn't looking to serve that market -- they're really most middle-of-the-road. In fact, Starbucks is probably getting by on a lot of signalling in that less subtle space.
