Slender Man: Punishment for Obesity?

There’s some urban legend about Slender Man, and it has apparently led kids to commit murder, arson, etc. But what’s it all about? If we’re going to have someone called “Slender Man” inspire violence and such, shouldn’t it be in an attempt to scare obese people into losing weight? Because then they’d be safe from Slender Man if they were also slender. (Or would they be suspects in Slender Man crimes? All of a sudden I’m not sure about this…)