I didn't think about the collateral damage it could cause to others, which is to bombard your "friend's feeds". This is also interesting because, well you can destory facebook in this manner. If enough people are peeing in the pool, people are going to get out.
Maybe I should write a greasemonkey script to accomplish just that. Not that I want to destroy facebook, but that if i wanted to destroy my data this would be the way because facebook doesn't give me that option.
Also does everyone else think it's creepy when your friends stop using facebook and old "likes" pop up on your feed to make it look like that user hasn't left?