Yes. Though Tumblr and 4chan both have older users, the ones that participate in this kind of thing "seriously" are generally of that cliquish high school mindset and narrow worldview characteristic of but not limited to teenagers. Ironically, it's that same earnestness that provokes raids like this.

Why would you destroy your time, resources, and sense of humanity for this childish crap?

Lulz. Srsly.