Stumbled on this Wheat: 200 Clinically Confirmed Reasons Not To Eat It | GreenMedInfo. Here's a quote from the article that I quite liked:
There has been a sharp increase in interest and research on the topic of "gluten intolerance" although we prefer to label the subject "gluten toxicity," in order to shift the focus away from the "victim" back to the "aggressor," the gluten itself.

Anyway, while they say there are 200 reasons not to eat wheat, I can only think of one that matters to me: I feel better without it.