BMI's fucking suck. I'm sorry, I may have issues about my appearance and self worth, but BMI is fucking shit. There are a few flickr groups and photo projects that really well capture the facts.
BMI means nothing, and you really shouldn't let it mean anything more. I'll be trying to remember that and a lot of other things, so as inspiration I'm going to be taking a few more "This is "Overweight" " themed photos.