Apparently they don't proof read. I received a newsletter today from my small town. The first ever published (new Mayor). The amount of typo's was embarassing (are there two R's in embarass?). I personally rely heavily on a spell checker.
One of them I remember was an add for the Catfish Fry - Free (donation excepted). Clearly they meant accepted.
Drives me bats when I see professionals at work using to and too, and sometimes two, incorrectly.