At this point several readers made Whole Foods jokes … :The percentage of Americans “struggling to afford food” has hit a 7-year low — 15.8% — according to Gallup. That’s relatively good news. On the other hand, the same survey reports that almost 4% of Americans with incomes over $90,000 “struggled to afford food” in the past year, suggesting … I dunno … that there are things about this survey that aren’t as clear as they seem (and probably that the survey overstates the hunger problem). …