When I read the title I thought 'Why the hell would I want to know how to stop humor online.' The article is interesting and would be better served by a title like:
Humor on the web and why to stop it (if you run a community site)
Humor on the web and why to stop it (if you run a community site)
Trying to avoid having your social network trolled by 4chan types doesn't really fit my idea of "stopping humor online." Goatse isn't exactly what I think of when you say "humor."