Bullying in Japan is a big problem. The victims have limited recourse. Too often they are told to suck it up and self-reflect. Or if they fight back, they get criticized for lashing out. It's a destructive dynamic, causing much misery and many a suicide.
The bullies are empowered by an odd phenomenon: In Japan, the right to know your accuser is not a given. When kids get criticized by the anonymous rumor mill, authorities make insufficient efforts to disclose who said what. The blindfolded bullied become powerless: There are lots of them and one of you, and unless you put names to critics they escalate with impunity.
Internet bulletin board (BBS) 2channel, the world's largest, is the ultimate example of this dynamic. Although the BBS is very useful for public discussions, its debate firestorms also target and hurt individuals. This flurry of bullies is guaranteed anonymity through undisclosed Internet Protocol addresses, meaning they avoid the scrutiny they mete out to others.