I read "Eat, Shoot & Leaves" last year (when I was twelve). I found astounding proof of Lynne Truss's points whilst scanning Internet forums and moving picture posters for grammatical and punctuational errors just waiting to be spat upon by my inner stickler. For example, from a forum I recently checked, quote:

"hy you are rite clg04 ant dtv the stuff ," end quote.

Lynne Truss clearly used well thought out and organized details to support her claims of grammatical ineptitude in modern day society (was there supposed to be a hyphen between "modern" and "day"?).

Five stars for Lynne Truss. Bravissima.