It doesn't bother me in the slightest.
McDonalds is a fast food chain. It serves fast food meals. It does not serve illegal substances. It does not force you to go inside and eat its food. It serves burger and chips. It apparently caters well for allergies and I know for definite they are very acomdating to people on restricted diets - friend's DS has a cheese sandwich in his happy meal for example. It may not be the healthiest stuff in the world but the odd meal there won't kill you.
I really don't get it.
MN is a business, and is here to make money. MDs will probably provide a decent amount of advertising revenue. Of course they should consider it seriously.